- Non-expanding foam, or low-expansion foam, is a type of foam that expands very little when applied1. It is useful for insulating small cracks and holes, waterproofing areas of a house or even insulating very large, hard-to-reach locations2. Non-expanding foam can outperform other materials in these applications2.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.
Foam wouldn't be foam if it didn't expand a little bit because it takes a certain amount of air to make a foam, and air occupies space. Given that all foams expand somewhat, some do so much less than others, and these are known as low-expansion foams.
www.hunker.com/13415694/non-expanding-foam-t…Non-expanding foam, or low-expansion foam, has a number of applications where it outperforms nearly every other material such as insulating small cracks and holes, waterproofing areas of a house or even insulating very large, hard-to-reach locations.www.tri-state-foam.com/non-expanding-spray-foa… - People also ask
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