• Low-modulus neutral-cure formula allowing joint movement up to ± 50 %.
• Excellent adhesion to porous and non-porous substrates – no primer required.
• Non-corrosive on metals; perfect for aluminium, coated steel and PVC-U.
• Long-term resistance to UV, ozone, weathering and temperature extremes.
• Ideal for glazing, perimeter and façade joints in commercial and domestic builds.

1. Surface Preparation

• Non-porous surfaces (glass, aluminium, metal): Clean thoroughly using Dowsil R-40 Universal Cleaner or a similar solvent on an oil- and lint-free cloth; wipe dry immediately.
• Porous surfaces (concrete, brick, stone): Clean mechanically with a stiff brush or abrasive pad to remove loose material and dust.

2. Masking - Apply masking tape along joint edges for neat lines and to prevent spread.

3. Application - Cut nozzle to suit joint width. Using a caulking gun, apply a continuous, even bead ensuring full contact with both sides of the joint.

4. Tooling - Tool immediately after application to compact the sealant and achieve a smooth finish. Remove masking tape before skin forms.

5. Curing

• Tack-free time: ≈ 30 minutes
• Full cure: 24 – 48 hours (depending on joint depth and climate)
  Avoid water exposure during the first 24 hours.

6. Joint Design Tips

• Keep a 2 : 1 width-to-depth ratio for optimum performance.
• Use a backer rod or bond-breaker tape to control joint depth and prevent three-sided adhesion.
• Minimum joint width 6 mm.