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

PRODUCT DESCRIPTION

Isomastic-A White Acrylic Caulk is a high-performance, single-component elastoplastic joint sealant formulated for filling and sealing low-movement gaps and joints. Designed for exceptional adhesion to porous building substrates, it forms a durable, crack-resistant seal that accommodates minor structural movement without shrinking or flaking. Ideal for perimeter sealing around window and door frames, skirtings, stairs, and plaster cracks, this water-based acrylic sealant cures quickly and can be easily overpainted with water-based or solvent-based paints once dry.

PRODUCT DETAILS

• Elastoplastic formulation accommodates low-movement joints without cracking

• High adhesion to porous building materials without requiring a primer

• Fast-curing and easily overpaintable with standard decorative paints

• Formulated for clean application, smooth tooling, and easy water cleanup before curing

• Low odour, solvent-free composition suitable for interior and exterior use

• Perfect for sealing joints around door and window frames, skirting boards, stair treads, and drywall

PRODUCT TECHNICAL INFORMATION

• Brand: Isomat

• Product Line: Isomastic-A

• Product Type: Elastoplastic Acrylic Caulk / Joint Sealant

• Size: 280ml Cartridge

• Color: White

• Base Type: Water-based Acrylic Polymer

• Area of Use: Interior and exterior joints and gaps

• Substrate Compatibility: Concrete, plaster, drywall, brickwork, render, timber, and anodized aluminum

• Joint Movement Capacity: Approx. 7.5% to 10%

• Application Method: Standard caulking / sealant gun