Guys, slightly confused!  
 
I was about to go and buy some Pro seal from Silmid but they will only supply 10 tins at a time!! So I contacted LAS who were very helpful and can supply the quantity I need. However, I was left confused on which type to use after my phone call. The advice on the LAS web site and during the phone was to use type A and not type B The Vans build manual suggests type B but not why.
 
I believe type A is thinner than type B, will this cause a problem and what type have other used? I plan to go with the 2 hour stuff and will try the Semkit too.

Hi Mark,
 
Thank you for your advice. I have ordered the B2 although I had advice on the Sqdrn to use A2. I wasn't sure of the difference but you've both confirmed for me that really it's the viscosity that's different. In view that the tank has a few areas that need a good wedge of the stuff I'm going to try B2.
 
I've ordered a tin of the stuff and also Semkit. Because there's one or two smallish jobs to start with I think I won't be able to use a full Semkit tube and once opened it has to be used. Fingers crossed all will work fine.
 
Rob