Isomastic-A White Acrylic Caulk – Elastoplastic Joint Sealant (280ml)

Product Description

Isomastic-A is a high-performance, one-component elastoplastic acrylic sealant designed for sealing and filling interior and exterior joints, gaps, and cracks. It offers exceptional adhesion to porous building materials such as concrete, plaster, masonry, brick, drywall, and wood. Once cured, it forms a durable, flexible seal that can be painted over with standard water- or solvent-based paint systems. Its solvent-free formula ensures low odour, safe indoor application, and easy water cleanup before curing.

Technical Data Specifications

• Product Name: Isomastic-A

• Pack Size: 280ml Cartridge

• Base & Technology: Acrylic Dispersion

• Colour: White

• Consistency: Smooth Paste

• Skin Formation Time: 10–20 minutes (at 23°C / 50% R.H.)

• Curing Speed: ~1–2 mm per 24 hours

• Movement Capability: ±12.5%

• VOC Content: Very Low VOC / Solvent-Free

• Overpaintability: Excellent (can be painted over after full skin creation)

• Suitable Surfaces: Concrete, plaster, masonry, brickwork, plasterboard, wood, and anodized aluminum

• Key Features: High elasticity, non-sagging, easy to smooth, paintable, interior & exterior use

• Application Tool: Standard Caulking Gun

• Clean-Up: Water (while wet)