You may have an image of washing a car in a driveway with a hose and a bucket of suds, but the best foam ... away. A foam gun usually screws onto a regular garden hose. It's a spray foamer that ...

An estimated 250,000 homes in the UK have spray-foam insulation, said the BBC ... briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.

Closed cell spray foam is made by mixing two chemicals. Each chemicaltravelsdown a separate hose and are mixed together as they are sprayed out of a gun at about1100-1200 psi. The chemicals need ...