Joint Sealants

Builda Joint 8000 GA

Premium Acrylic Joint and Gap Sealant

One-part gun grade acrylic sealant for internal and external joints and surface cracks.

  • Single component ready for use
  • Excellent adhesion to porous substrates
  • Fast drying and UV resistant
  • Flexible seal that does not crack at low temperatures

Surface Preparation

Surfaces must be sound, clean and free from loose materials, chemical products, oil and grease. Prepare joints mechanically and use masking tape for neat work

Priming

For porous or very dry substrates, dilute Builda Joint 8000 GA with water at 1:3 and apply a thin coat as primer. Allow to become tack-free

Joint Backing

Use appropriate backing rod where applicable. For wide joints, joint depth should be half the joint width; for joints under 10 mm, depth equals width

Application

Apply with caulking gun, putty knife or spatula. Press sealant firmly into the joint to avoid gaps and tool before skin forms

  • Sealing joints between precast concrete panels
  • Flexible seals between doors, walls, ceilings, wood panels and insulation panels
  • Sealing joints between concrete, plaster, brickwork, wood and natural stone
  • Crack filler in plaster or concrete
  • Sealing joints between aluminium sheets and roof walls

Property
Value
Applicable standard
EN15651-1
Appearance
Smooth and pasty
Color
Grey and White
Density
1.30 ± 0.05
Application temperature
+5°C to +40°C
Service temperature
-5°C to +80°C
Skin formation time
10-15 minutes
Hardening time
2 mm per day
Sag resistance
Excellent