If I spray a Two-Component kit, and the foam does not cure, is soft and spongy, or is crispy to the touch, what went wrong?
A. The kit is probably off-ratio. The components are designed to dispense 1:1 in volume. Make sure the kit has been thoroughly shaken before use, and that each tank valve is fully open. Change the gun nozzle and resume spraying. Proper chemical temperature is also required for optimum dispensing (see above).