Any one find a foam gun that will last before it wont work after a couple of jobs or even just hours of use. Its a shame you have to order 2/3 at a time to unsure you have a working gun.. This as been a problem for years.

The only way I have found to get continued multiple use from a foam gun is to clean them after each use and keep a can of cleaner attached to the gun all the time between uses. I have had some last a few years with diligent maintenance like described.

I use this one 99% of the time.

https://www.wildlifecontrolsupplies.com/animal/NWS0707.html

Usually lasts 12-18 months, unless I drop it. Wipe the tip off when done, and I'll gently use a utility knife to scrape dried foam off of tip.Towards the end of its life, I have to use a lighter at the tip if it won't open. Once a can of foam is on I don't take it off until empty.

I’m bidding out a job right now that will require a lot of foam work, someplace around 700 feet of flashing just by looking, all 3 stories up. Plan on several guns, I have tried cleaning them, make sure they are closed good some just seem better than others. This place is eager to get started.

wws