3 replies to this topic

[Bobbins]

Their website says:

 

"Over coating can be carried out once film is hard dried – but high solvency top coats should be applied after 24 hrs"

 

Their PDF product download says:

 

"Over coating can be carried out once film is hard dried as described above – but high solvency top coats should only be applied after 96 hrs"

 

 

How long is the "usual" drying time before over coating? I'm intending to use an epoxy primer prior to the colour and leaving it a day or two is fine but if I leave it 4 days before priming I'll never get the job done!

 

Stu.

 

[MikeRotherham]

I've had an email conversation with Bilt Hamber about this.

 

Drying time is dependent on what you are putting over the top. It was Gravitex that i was applying with a brush on this occasion and I waited the full 4 days although I agree it is a pain.

 

I've since done spraying with rattle cans a few times after leaving it only 24 hours and it was fine.

[Bobbins]

Thanks, that’s good information. I don’t tend to rush things and fine leaving 24 - 48 hours, but 96 seamed a little excessive! I suspect the fragility of the zinc layer would mean anything being brush applied particularly something as thick as Gravitex would probably need the extended drying time.

[Dusky]

An epoxy isnt high in solvents normaly.
Although I'd leave it as long as possible to avoid solvent pop.