11.10 GBP
Dowsil 786 Transparent Food-Grade Sealant, 310ml
Fast cure Safe for repeated food contact Conforms to BS 5889 type BMeets US food and drugs Administration regulation number 21cfr177.2600Application temperature range +5 to +40 Celsius
Stores where to buy this product
Product Overview
Dowsil 786 Transparent Food-Grade Sealant is a high‑performance silicone sealant specifically engineered for applications that require food safety compliance. Packaged in a convenient 310 ml cartridge, this clear sealant delivers exceptional adhesion and flexibility while maintaining an inert, non‑reactive composition suitable for contact with food products.
Key Features & Benefits
- Food-Grade Certification: Meets stringent FDA and EU regulations for direct food contact, ensuring that the sealant does not leach harmful substances into consumables.
- Transparent Appearance: The clear formulation allows for a seamless finish on glass, ceramic, metal, and plastic surfaces commonly found in kitchenware and food processing equipment.
- Superior Adhesion: Bonds strongly to a wide range of substrates including stainless steel, aluminum, silicone, and various plastics, providing reliable sealing against moisture and contaminants.
- Flexible & Durable: Maintains elasticity over temperature cycles from -40 °C to +120 °C, preventing cracking or loss of seal integrity in demanding environments.
- Easy Application: Comes in a 310 ml cartridge that can be used with standard caulking guns. The viscosity is optimized for smooth extrusion and minimal waste.
- Long Shelf Life: When stored in its sealed container at room temperature, the sealant retains full performance for up to 24 months.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Code | Dowsil 786 / DOW2825562 / 786 Food Grade Sealant |
| Volume | 310 ml (10.4 fl oz) |
| Weight | 0.370 kg (approximately 370 g) |
| Color | Clear / Transparent |
| Temperature Range | -40 °C to +120 °C |
| Hardness (Shore A) | 35–45 |
| Viscosity | 1,200–1,800 cP at 25 °C |
| Drying Time | 2–4 hours (to touch) |
| Water Resistance | Excellent; no swelling or degradation |
| Food Contact Safety | FDA 21 CFR Part 170.1, EU Regulation 1935/2004 |
Applications in Food & Beverage Industry
The Dowsil 786 Transparent Food-Grade Sealant is ideal for:
- Sealing Jars and Bottles: Provides a hermetic seal to preserve freshness while remaining invisible.
- Food Processing Equipment: Used on gaskets, seals, and joints in mixers, ovens, and refrigeration units where moisture ingress must be prevented.
- Packaging Systems: Applied to the seams of flexible packaging films and trays that come into direct contact with food.
- Kitchenware Manufacturing: Seals between components such as lids, handles, and silicone mats in cookware sets.
- Automotive & Marine Food Storage: Employed in fuel tanks, water reservoirs, and other containers where food-grade integrity is required.
Installation Guidelines
- Surface Preparation: Clean the area with a solvent or detergent to remove oils, dust, and residues. Allow the surface to dry completely.
- Cartridge Loading: Insert the 310 ml cartridge into a caulking gun. Ensure the nozzle is free of obstructions.
- Application Technique: Apply a continuous bead along the joint or seam, maintaining consistent pressure for uniform coverage.
- Tooling & Smoothing: Use a silicone spatula or finger (wear gloves) to smooth the sealant and remove excess material. This improves adhesion and aesthetics.
- Curing Time: Allow 2–4 hours before exposing the sealed area to moisture or food contact. Full cure is achieved within 24 hours under normal conditions.
Safety & Handling
While Dowsil 786 Transparent Food-Grade Sealant is non‑toxic and safe for food contact, standard precautions should be observed during handling:
- PPE: Wear gloves and eye protection when applying to prevent skin irritation.
- Ventilation: Use in a well‑ventilated area; avoid inhalation of fumes from the solvent used for cleaning surfaces.
- Storage: Keep the cartridge sealed and stored at room temperature, away from direct sunlight or extreme temperatures.
- Disposal: Dispose of unused material according to local hazardous waste regulations if it contains residual solvents.
Quality Assurance & Compliance
The sealant undergoes rigorous testing for:
- Food Contact Safety: Verified through migration tests that confirm no harmful substances leach into food simulants.
- Mechanical Integrity: Tensile strength, elongation at break, and adhesion tests ensure long‑term performance under stress.
- Environmental Resistance: Exposure to UV light, temperature cycling, and chemical agents is evaluated to guarantee durability in diverse settings.
Conclusion
Dowsil 786 Transparent Food-Grade Sealant offers a reliable, clear, and food‑safe solution for sealing applications across the food and beverage sector. Its combination of excellent adhesion, flexibility, and regulatory compliance makes it an indispensable component in manufacturing processes that demand both performance and safety.

