+x

 

Warren (Staff) - 1/24/2018 5:42:39 PM

The "open time" for bonding the coupling coat to the gel is quite wide.  Depending on MEKP level, temperature and thickness, you could be able to apply the coupling coat after only a few hours.  However guard against too early application as the two layers can react with each other causing surface alligatoring if you get it wrong.  Typically we say leave it overnight or up to around 24 hours and you should have no problems getting a good bond. Realistically you can get away with longer but longer you leave it, the lower the bond strength.

+x

 

TonyW - 1/24/2018 5:49:01 PM

+x

 

Warren (Staff) - 1/24/2018 5:42:39 PM

The "open time" for bonding the coupling coat to the gel is quite wide.  Depending on MEKP level, temperature and thickness, you could be able to apply the coupling coat after only a few hours.  However guard against too early application as the two layers can react with each other causing surface alligatoring if you get it wrong.  Typically we say leave it overnight or up to around 24 hours and you should have no problems getting a good bond. Realistically you can get away with longer but longer you leave it, the lower the bond strength.

Thank you Warren.
I'l be starting making the mould tomorrow night after work so fingers crossed I hope to have the finished mould and released this weekend.