Before the invention of the spray gun to deliver it anywhere it's wanted, pouring was the only way to deliver polyethylene foam. Despite the popularity and extreme convenience of the spray gun, there are still a few instances where only pour foam is appropriate, so you can still get it in this form. In fact, you can either get it pr-emixed, or you can get it for mixing on site, depending on what is most suitable for your needs.

Sometimes also called froth foam, pour foam is often still used for insulation purposes, such as cavity fill. This type of foam can be had in different densities and various viscosities to suit the project in hand. Pour foam is sometimes more reliable in circumstances where there is no experienced operator for the gun. Guns can sometimes give rise to problems and they do require a certain level of experience. With pour foam, you just point and pour and that's all there is to it.

Pour Foam and Spray Foam

Pour foam can still be used for any of the applications that spray foam is now commonly used for. However, spray in place foam is now considered to be much easier and more convenient to use. There are drawbacks to pour foam, however.

Once mixed, it must be used within a certain time limit or it will cure and thus become useless. Although it is preferable not to stop spraying once you begin using a gun, if you have to you can and no foam will be wasted. If you're in doubt as to which type of foam you should be using, then consult with your supplier who should be able to advise you.