SIKA – PU expanding foam spray – SikaBoom AP – Single component polyurethane foam – Fast curing – HFC-free – Easy to apply – 250 ml – Light Yellow

Great product! It expands nicely and seals gaps effectively—perfect for small home repairs like sealing around AC units or cracks in walls. The foam sets quickly and feels durable once cured. Very easy to use, just be sure to wear gloves. Overall, a reliable and handy solution for DIY fixes 👍 Highly recommended!!

The product is very good but the quantity is very less

It's very useful for cracks & unwanted gap on walls . this is a foam based formula which is easy to use

Phone quality is good but the outlet tube once is used can’t use more time

Not working after 20% use

Applied it on plastered wall and door frame. Plastic surface won't hold the adhesive.My door frame was completely damaged due to moisture. Sprayed this product on complete frame and hence the dirt on nozzle that is seen in the picture.The fully cured product feels like thermocol.Lesson learnt:Allow the product to dry 100%. It should feel like rock to touch, only then slice (and not pull) the excess from outer edges.If the cervix is deep, then it takes about 30 to 40 mins to dry.The nozzle can be cleaned once the foam dry to touch as this product doesn't stick to plastic.A little goes a long way. No need to spray until we see the peak of foam coming out of the cervix as the nature of this product is slow expansion.Wear gloves during application else taking the product off the skin is a nightmare.I wish the nozzle was much slimmer.

Good product

The SIKA PU Expanding Foam Spray (SikaBoom AP) is an outstanding single-component polyurethane foam that delivers exceptional performance for sealing, filling, and insulating gaps with ease. Its fast-curing formula ensures quick results, while the HFC-free composition makes it an environmentally friendly choice. The application process is effortless, thanks to its precise spray mechanism, allowing for a smooth and even spread. Once cured, it forms a durable, long-lasting seal that enhances thermal and acoustic insulation. Whether for construction, DIY projects, or professional use