Siroflex Anti Crack Acrylic Caulk

Siroflex Anti Crack Acrylic Caulk White 310ml x 12

Regular price £35.40

Unit price per 


Pack Size

Siroflex Anti-Crack Acrylic Caulk is a high quality acrylic sealant which is paintable with most water based and synthetic paints, and prevents craze cracking and discoloration of paint. It offers:

• Paintable with water based and synthetic paints

• Reduces craze cracking and discoloration of the paint

• Perfect adhesion without use of primer on most, even slightly damp substrates

• Interior and exterior (*) uses

• Almost odourless

• Easy to apply and clean

• Non corrosive towards metals

*Exterior applications only in good, dry weather, and it must stay dry for at least 5 hours after application


Siroflex Anti-Crack Acrylic Caulk was specifically developed for sealing connection joints between stairs, walls, ceilings, skirtings, windowsills, wooden and metal window frames, concrete and brickwork and or filling cracks, screw- and nail holes in walls and ceilings of wood, plaster, gypsum, brickwork, concrete etc.


Application temperature +5°C to + 40°C (applies to environment and substrates). All substrates must be solid, clean, dry, and free of grease and dust. Substrates to be cleared of all loose particles, absorbent substrates do not need to be absolutely dry. Very porous substrates like: gypsum, airated concrete, limestone, etc, need to be primed with a mixture of 1 part Zwaluw Acryl Anti-Crack and 2 parts water. Always test adhesion prior to application. Finish and smooth with water. .A joint with the correct dimensions is able to absorb movements between building materials. The joint depth should always be in the correct relationship of the joint width. A general rule is the ratio of joint depth to the width of the joint with a joint width up to 10mm is 1:1, with a minimum of 5mm in width and depth. For joints wider than 10mm, the depth is the width divided by 3 plus 6mm.


Technical Datasheet


Declaration Of Performance

Close (esc)

Christmas Closedown 21/12/2021 - 07/01/2021

Ideal Sealants will be closed for the Christmas between 21/12/2021 - 07/01/2022. Any orders placed during this time will be processed 10/01/2022.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Shopping Cart

Your cart is currently empty.
Shop now