Applications – Onnovo

Paints & Coatings

Painter of a newly built house, Painter holding a paint roller skillfully paints a house, A house under construction nearing completion has a painter applying a white primer.

Onnovo-Srivilas Biotech provides a full portfolio of preservatives and additives for the paints and coatings sector. Manufacturing capability covers in-can preservatives, dry-film biocides, and performance additives including dispersants, defoamers, rheology modifiers, and anti-skinning agents. Production uses controlled processes to ensure active stability, regulatory compliance, and consistent quality. Our technical service team supports customers with formulation optimization, microbiological testing, and regulatory guidance, enabling durable, compliant, and cost-efficient coatings.

Our products for Paints & Coatings

In-can preservatives:

Control bacterial growth, preventing spoilage, odor, and viscosity loss during storage and distribution.

Dry-film biocides:

Provide long-term resistance against fungal and algal attack on painted surfaces exposed to outdoor or humid environments.

Dispersants:

Improve pigment dispersion and prevent settling, ensuring consistent color strength and film uniformity throughout the coating’s lifecycle.

Defoamers:

Reduce foam during manufacturing and application, minimizing defects such as pinholes and cratering in the dried film.

Rheology modifiers:

Adjust and stabilize viscosity across shear rates, improving application consistency and sag resistance.

Anti-skinning agents:

Prevent oxidative skinning on the surface of stored paints, maintaining usability without compromising film performance.

01. Why do paints spoil in storage?

Microbial contamination can degrade paint by producing gas, odor, and viscosity breakdown. Onnovo-Srivilas provides targeted in-can preservatives, validated through laboratory challenge testing, with technical guidance on correct dosing and compatibility, ensuring extended shelf life without compromising formulation stability.

02. How can dry-film coatings resist fungal attack outdoors?

Exterior coatings face constant exposure to moisture and UV, which promotes fungal and algal growth. Our dry-film biocides, including encapsulated controlled-release systems, provide prolonged microbial protection under high humidity and temperature fluctuations, ensuring consistent surface performance and reduced maintenance cycles.

03. How do I minimize formulation instability?

Instability results from poor pigment dispersion or viscosity drift under storage. Our dispersants stabilize pigments across pH ranges, while rheology modifiers ensure consistent viscosity during storage and application, reducing defects and improving end-use reliability in both architectural and industrial coatings.

04. How do you ensure compliance with biocide regulations?

Regulatory standards like EU BPR, US EPA, and India BIS constantly evolve. We supply products with complete regulatory dossiers, safety data, and technical documentation, while our specialists provide ongoing updates and assist with compliance audits, minimizing regulatory risk for manufacturers.

05. How do you ensure compliance with regional biocide regulations?

We monitor evolving EU BPR, US EPA, and Indian regulatory frameworks. Our products are supplied with documentation and technical guidance to help customers meet compliance requirements.

Water Treatment & Wastewater

Srivilas Hydrotech’s water treatment chemicals cover cooling tower, boiler, RO, and effluent treatment systems. Manufacturing capability includes antiscalants, corrosion inhibitors, dispersants, and oxidizing and non-oxidizing biocides, supported by polymers for clarification and sludge management. Products are designed for dosing accuracy and stability in varied water chemistries. Technical service includes site surveys, program design, and performance audits to ensure consistent system operation and regulatory compliance.

Our products for Water Treatment application

Cooling tower antiscalants:

Prevent scaling and fouling on heat transfer surfaces, maintaining energy efficiency and reducing cleaning frequency.

Boiler treatment chemicals:

Include oxygen scavengers, alkalinity boosters, and antiscalants, ensuring corrosion prevention and steam purity.

RO antiscalants:

Delay mineral precipitation, protecting membranes from scaling and extending operational life with reduced downtime.

Effluent polymers:

Aid flocculation and sludge dewatering, improving treatment efficiency and lowering disposal costs.

Non-oxidizing biocides:

Provide targeted microbial control, effective against bacteria and algae without generating corrosive by-products.

Corrosion inhibitors:

Protect metallurgy in recirculating systems by forming protective films on metal surfaces.

01. How do I reduce scale in cooling towers?

Scaling reduces heat transfer and increases energy demand. We formulate threshold inhibitors and dispersants tailored to specific water chemistries. Our field service team provides regular water analysis and adjusts dosing, ensuring scale control and extended system uptime.

02. What’s the best way to control microbial fouling?

Biofilm causes under-deposit corrosion and efficiency loss. We supply oxidizing and non-oxidizing biocides with alternating or synergistic dosing programs, combined with field monitoring, to control fouling while preventing resistance build-up in microbial populations.

03. How can RO plants avoid frequent membrane replacement?

RO membrane fouling is caused by mineral scaling and biofilm. Our RO-specific antiscalants are tested for compatibility with leading membranes. Combined with regular feedwater analysis and performance audits, this extends membrane service life and reduces replacement frequency.

04. How do you ensure boiler reliability and safety?

Boilers face risks from scale, oxygen corrosion, and carryover. We provide oxygen scavengers, alkalinity adjusters, and dispersants, designed for system metallurgy and feedwater chemistry, ensuring consistent steam quality and safe long-term operation.

Pulp & Paper

Our pulp and paper specialty chemicals are designed to improve runnability, sheet quality, and microbiological stability. The portfolio includes retention aids, sizing agents, de-inking chemicals, defoamers, biocides, and deposit control agents. Manufacturing capacity allows production of both commodity and application-specific formulations, tailored to furnish, process water quality, and machine design. Technical services include wet-end audits, lab simulations, and hygiene programs to help mills maintain consistent production efficiency and end-product quality.

Our products for Pulp & Paper application

Retention aids:

Improve retention of fibers and fillers, reducing solids loss in effluent.

Sizing chemicals:

Control paper hydrophobicity and printability through internal and surface sizing systems.

Biocides:

Target bacterial slime and spoilage organisms in stock and white water systems.

Defoaming agents:

Suppress air entrainment and foam, minimizing defects in sheet formation.

Deposit control agents:

Disperse pitch, stickies, and scale, preventing deposits on machine surfaces.

De-inking agents:

Break down ink particles, improving brightness and cleanliness of recycled pulp.

01. How do mills control microbial slime?

Slime accumulation leads to sheet breaks and poor quality. Our biocides, supported by microbial monitoring programs, keep bacterial counts under control, reducing downtime and product losses.

02. How can fiber and filler loss be minimized?

Poor retention raises chemical demand and effluent load. We supply tailored retention aids optimized for furnish chemistry, improving fines capture and machine drainage, reducing overall chemical costs.

03. How do you address pitch and stickies?

Resinous and adhesive deposits cause downtime and defects. We supply dispersants and deposit control chemicals, paired with wet-end monitoring, to prevent accumulation and maintain machine cleanliness.

04. What chemicals improve recycled paper brightness?

Recycled pulp contains residual inks and contaminants. Our de-inking agents improve ink detachment and flotation efficiency, raising brightness while lowering bleaching demand and improving final sheet quality.

Sugar Specialties

Srivilas manufactures process chemicals for sugar production, focusing on evaporator scale control, mill sanitation, and juice clarification. The product range includes antiscalants, biocides, viscosity modifiers, clarifiers, pH adjusters, and oxygen scavengers. Production facilities are designed for consistent batch quality and scalability. Technical support includes performance audits, cleaning cycle optimization, and tailored dosing recommendations to improve thermal efficiency, reduce downtime, and maintain consistent product quality in sugar processing plants.

Our products for Sugar manufacturers

Evaporator antiscalants:

Inhibit scale deposition on heating surfaces, improving heat transfer and efficiency.

Mill sanitation biocides:

Reduce microbial contamination, preventing sugar inversion losses and spoilage.

Juice clarifiers:

Aid in solids settling and color removal, improving product purity.

Viscosity modifiers:

Break down high-molecular polysaccharides, reducing viscosity for efficient processing.

Oxygen scavengers:

Prevent corrosion in boiler feedwater, improving equipment longevity.

PH adjusters:

Optimize process conditions, aiding clarification and reducing scaling tendency.

01. How can evaporator scaling be minimized?

Scale reduces heat transfer efficiency and forces frequent cleaning shutdowns. Our threshold antiscalants are dosed online to delay precipitation, extending run time between cleanings and reducing chemical cleaning demand.

02. What solutions improve juice clarity?

Poor clarification leads to turbidity and high color in sugar. Our clarifiers and precipitants optimize solids settling, supported by jar testing and application trials to fine-tune dosage for local juice chemistry.

03. How is microbial contamination controlled in mills?

Microbial growth causes sucrose inversion and quality loss. We supply biocides compatible with sugar processes, combined with hygiene monitoring and sanitation programs to ensure process integrity.

04. How do you handle high viscosity in juice streams?

High viscosity impairs flow and evaporation. Our viscosity modifiers act on polysaccharides, reducing resistance and improving throughput. Field trials confirm performance under variable seasonal cane quality.

Personal Care

Onnovo-Srivilas Biotech supplies a range of personal care preservatives, including natural alternatives and multifunctional ingredients that allow for “preservative-free” claims. Products cover rinse-off and leave-on formulations in skin care, hair care, and hygiene products. Our technologies comply with EU, US, and Asian regulations, ensuring consumer safety and brand flexibility. Technical services include formulation support, challenge testing, and guidance on optimizing preservative dosage while balancing sensory, stability, and regulatory requirements.

Our products for Personal Care & Cosmetics

Natural preservatives:

Plant-derived or fermentation-based antimicrobials that support eco-certifications while delivering reliable microbial protection.

Multifunctionals:

Dual-role ingredients that add preservation while enhancing skin-feel, moisturization, or emulsification, supporting “preservative-free” claims.

Traditional preservatives:

Cost-effective chemistries such as phenoxyethanol blends that remain stable across broad formulation conditions.

Leave-on preservatives:

Mild, low-irritancy systems suitable for sensitive formulations such as creams, lotions, and serums.

Rinse-off preservatives:

Surfactant-compatible solutions for shampoos, shower gels, and soaps where high water activity requires robust protection.

01. How can we market “preservative-free” products safely?

We provide multifunctional ingredients not classified as preservatives but validated for antimicrobial efficacy, enabling clean-label claims while maintaining product stability.

02. What natural preservation options are available?

Our natural actives include organic acids and plant-derived molecules. We advise on formulation conditions to maximize antimicrobial effectiveness while minimizing sensory impact.

03. How do we ensure global compliance?

All preservatives are supported with EU, US, and ASEAN regulatory dossiers. Our specialists advise on approved actives and dosage by region.

04. Do natural preservatives affect sensory properties?

Some may alter odor or feel. We recommend stabilizers or masking agents to maintain desired aesthetics.

Metal Working Fluids (MWF)

Preservatives are critical in metalworking fluids (MWF) to prevent bacterial growth, extend fluid life, and reduce disposal frequency. Onnovo-Srivilas provides broad-spectrum biocides, including encapsulated systems, for water-miscible and semi-synthetic MWF. Our solutions improve sump hygiene, reduce odor, and deliver measurable cost savings by minimizing downtime and lowering fluid replacement frequency. Technical support includes microbial monitoring, dosing optimization, and compatibility testing with emulsifier systems.

Our products for Metal Working Fluids

Tank-side biocides: Quick-kill agents used for shock dosing, restoring sump cleanliness.

In-can preservatives:

Protect fluid concentrates during storage, preventing spoilage and phase separation.

Encapsulated biocides:

systems providing sustained antimicrobial protection in high-demand MWF environments.

Formaldehyde releasers:

Cost-efficient preservation where broad-spectrum, long-lasting performance is required.

Amine-compatible biocides:

Formulated to prevent destabilization in emulsifier and alkanolamine systems.

01. How can we extend MWF life?

Encapsulated preservatives release actives gradually, doubling or tripling sump life while reducing disposal and replacement costs.

02. How to prevent odor in MWF sumps?

Odor results from bacterial amine degradation. Our biocides control microbial activity, maintaining freshness and operator acceptance.

03. Do preservatives destabilize emulsions?

Our biocides are tested for emulsifier compatibility, maintaining fluid stability and corrosion protection.

04. What is the cost-saving impact?

By extending sump life and reducing downtime, preservative programs deliver measurable ROI confirmed through customer field trials.

Household, Industrial & Institutional (HI&I)

Onnovo-Srivilas Biotech provides preservatives and disinfectants for household, industrial, and institutional (HI&I) cleaning products. Our chemistries prevent microbial contamination in liquid formulations such as detergents, surface cleaners, and disinfectant concentrates. In addition, we supply active ingredients for ready-to-use disinfectants and sanitizers. All products are supported by efficacy testing against bacteria, fungi, and viruses, with compliance to US EPA, EU BPR, and Indian standards.

Our products for HI&I Industry

In-can preservatives: Prevent microbial spoilage in high-water activity formulations such as cleaners and detergents.

Surface disinfectants:

Actives for sprays and concentrates providing rapid microbial kill on treated surfaces.

Sanitizers:

Antimicrobial systems for hand hygiene and institutional cleaning, effective against bacteria and viruses.

Non-oxidizing biocides:

Provide long-lasting stability in concentrated formulations.

Oxidizing actives:

Fast-acting chemistries such as peracetic acid or chlorine donors for disinfection.

01. Why do detergents spoil despite surfactants?

Surfactants don’t inhibit microbes. Our preservatives control bacteria and fungi, extending product shelf life.

02. What actives are best for multipurpose disinfectants?

We offer quaternary ammonium, isothiazolinone, and oxidizing biocides, selected based on efficacy and regulatory profile.

03. How can viral efficacy be ensured?

Our disinfectants are validated against enveloped and non-enveloped viruses, meeting WHO and EPA standards.

04. What about regulatory restrictions?

Some actives face limitations. We recommend compliant alternatives with supporting documentation for product registration.

Construction Material

Construction materials such as cement admixtures, grouts, sealants, and adhesives are prone to microbial spoilage during storage and use. Onnovo-Srivilas provides broad-spectrum preservatives and dry-film biocides designed for alkaline and high-pH systems. Our additives maintain product stability, prevent microbial degradation, and extend service life. Technical service includes compatibility testing with admixtures and performance validation under simulated field conditions.

Our products for Construction Material

In-can preservatives:

Protect admixtures and sealants from spoilage during storage.

Dry-film biocides:

Provide fungal resistance in cured grouts, caulks, and sealants.

Antifungal agents:

Control mold on damp construction surfaces in high-humidity environments.

Encapsulated actives:

Cell Technology maintains efficacy in alkaline cementitious products.

Multifunctional additives:

Combine preservation with performance benefits such as flow or curing enhancement.

01. Why do admixtures spoil?

They are water-based. Our preservatives maintain stability, preventing gas formation and viscosity drift.

02. How to prevent mold on grouts?

Our dry-film biocides resist fungal colonization, proven by accelerated humidity testing.

03. Are preservatives stable in alkaline products?

Encapsulated actives remain stable and effective in high-pH cementitious environments.

04. How do you verify performance?

Challenge testing and weathering simulations confirm microbial resistance under realistic service conditions.

Wood

Onnovo-Srivilas supplies wood preservatives formulated to protect against fungi, mold, and insect attack. Products comply with global regulations (BPR, EPA, IS standards) and are suitable for pressure-treated, dip-treated, and surface-applied wood. Modern formulations emphasize reduced environmental impact while maintaining long-term durability.

Our products for Wood/Timber

Fungicides:

Prevent decay, mold, and blue stain organisms that compromise wood.

Insecticides:

Protect against termites, borers, and other destructive pests.

Waterborne preservatives:

Deep penetration for indoor or eco-sensitive applications.

Solvent-based preservatives:

Durable systems for outdoor and marine exposure.

Global-compliant formulations:

Developed to meet EPA, EU, and Indian standards.

01. How do you ensure compliance?

Products are pre-registered under EPA and EU BPR, with support for Indian dossiers.

02. What’s the difference between waterborne and solvent systems?

Waterborne is eco-preferred; solvent-based is better for outdoor durability.

03. Do preservatives affect wood appearance?

Clear systems minimize color shift, pigmented options add aesthetics plus protection.

04. Do products meet durability testing?

Yes—tested against EN and AWPA standards for fungi and insect resistance.

Plastics

Microbial growth affects plastics such as PVC, WPC, and elastomers, leading to discoloration, odor, and mechanical degradation. Onnovo-Srivilas provides biocides and stabilizers to protect polymers during manufacture and use. Our solutions are tested for heat stability, UV resistance, and migration safety, ensuring consistent protection throughout the product lifecycle.

Our products for Plastics

Polymer-compatible biocides:

Heat-stable actives that survive extrusion and molding.

UV-stable actives:

Resistant to degradation, maintaining protection in outdoor plastics.

WPC protection:

Biocides for composites, preventing decay and mold growth.

PVC preservatives:

Long-term microbial stability in flexible PVC products.

Additive blends:

Combine preservative and processing aids for efficiency.

01. Why do plastics need preservatives?

Plasticizers and fillers encourage microbes. Our actives maintain surface integrity and strength.

02. Do actives survive processing?

Yes—our heat-stable preservatives withstand extrusion temperatures.

03. How do you protect WPC?

We supply preservatives compatible with extrusion, preventing fungal attack.

04. What about migration risks?

Our low-leach systems maintain safety while ensuring durability.

Energy (Oil & Gas)

Microbial contamination in oilfield systems causes souring, corrosion, and reduced productivity. Onnovo-Srivilas provides oilfield biocides, H₂S scavengers, and preservatives for drilling fluids, hydraulic fracturing, and enhanced oil recovery. Our chemistries are optimized for high-salinity and high-temperature environments, ensuring reliable microbial control and asset protection. Technical support includes on-site trials, dosing optimization, and safety documentation for compliance with oilfield regulations.

Our products for Oil & Gas Industry

Oilfield biocides:

Control sulfate-reducing and acid-producing bacteria in reservoirs.

H₂S scavengers:

Remove hydrogen sulfide, preventing souring and corrosion.

Drilling fluid preservatives:

Stabilize muds and fracturing fluids in storage.

High-temperature biocides:

Stable under reservoir conditions exceeding 90°C.

Corrosion inhibitors:

Protect pipelines and downhole equipment surfaces.

01. Why does H₂S form in reservoirs?

Caused by bacteria. We supply biocides and scavengers that stop souring.

02. How is biofouling prevented?

Our high-salinity biocides protect drilling fluids against microbial attack.

03. Do oilfield biocides corrode equipment?

Our actives are formulated for metallurgy compatibility, reducing corrosion risk.

04. How is performance validated?

Lab simulations and field trials confirm microbial kill rates under site conditions.

Mineral Slurries

Mineral slurries such as kaolin, calcium carbonate, and clay suspensions are prone to microbial spoilage during transport and storage. Onnovo-Srivilas provides broad-spectrum preservatives that prevent viscosity loss, odor, and product degradation. Our chemistries are designed for compatibility with mineral suspensions, ensuring long-term stability and reduced downtime. Technical service includes stability testing, microbial challenge studies, and customized dosing strategies.

Our products for Mineral Slurries

In-slurry preservatives:

Maintain stability in mineral suspensions during storage and shipment.

Dispersant-compatible biocides:

Control spoilage without interfering with slurry dispersion.

Encapsulated preservatives:

Long-release systems for export shipments and extended storage.

High-solid suspension preservatives:

Effective at high loadings, preventing viscosity drift.

Odor control agents:

Neutralize microbial by-products causing foul odor.

01. Why do mineral slurries spoil?

Microbes metabolize organics, causing viscosity loss. Our preservatives prevent spoilage, preserving flow.

02. Do actives affect dispersion?

Our formulations are dispersant-compatible, ensuring particle suspension remains stable.

03. How is odor prevented?

Biocides eliminate odor-causing microbes. Odor-neutralizing additives further improve acceptability.

04. How to secure long transport stability?

Encapsulated preservatives release gradually, maintaining microbial control during export shipments.