Monday, July 19, 2010

Why do I have blisters in my sealer?

Ask a Pro

Q. -  We've used a solvent base sealer product two seasons now and both times were done in proper weather conditions and both times bubbled (blistered). Could this be because surface of patio is hotter then outside temp (although we applied it one year at 6am and the other time at 8pm) or is it because we're putting it on too thick? This condition is after first or second coat, didn't make a difference.
Hello Bill
A. -  When solvent base sealers blister during application, it's because the temperature of the surface it is being applied to and/or the air temperature is too hot.