• High-strength neutral-cure silicone for structural glazing and bonding glass façades
• Excellent adhesion to glass, anodised aluminium, and coated metals
• Designed for structural glazing, curtain walling, and insulating glass units (IGUs)
• Proven long-term durability under UV, weathering, and temperature extremes
• Certified to ETAG 002 / ASTM C1184 structural silicone standards

1. Surface Preparation

• Clean glass, metal, and coated substrates using a compatible solvent such as Dowsil R-40 Universal Cleaner on a lint-free cloth.
• Ensure all surfaces are dry, dust-free, and free of oil, release agents, or other contaminants.
• Allow solvents to flash off completely before applying the sealant.

2. Primer Use - In some glazing systems, a primer may be required to achieve optimal adhesion — always perform a preliminary adhesion test or follow system supplier recommendations.

3. Masking - Apply masking tape to joint edges for neat lines and to prevent smearing.

4. Application - Cut the nozzle to match joint width. Apply Dowsil 895 using a pneumatic or manual gun in a continuous, even bead. Ensure full wetting of both substrates. Avoid trapping air bubbles.

5. Tooling - Tool immediately after application to compress the sealant into the joint and achieve a smooth, uniform profile.

6. Curing

• Skin time: ~50 minutes
• Full cure: approximately 7–14 days depending on joint thickness, temperature, and humidity.

Do not move or stress bonded units until full cure has developed.

7. Joint Design Tips

• Maintain joint dimensions as per system engineering design.
• Use a backer rod or bond-breaker tape to prevent three-sided adhesion.
• Ensure adequate sealant bite per design loads (typically ≥6 mm)