POR-15

[kartman24]

Those of you that have used POR-15 `metal ready`, did you rinse it off before going on with the POR-15? The metal ready instructions say keep it wet for 10-15 mins then rinse off when using it as a metal treatment (my chassis has been shot blasted)......Martin

[Englishman]

Yes, you need to rinse the acid off and let it dry before applying POR15. It's great stuff BTW

[kartman24]

Thanks for the reply, i phoned Frost`s to query the instructions about washing it off, the guy advised me to `ignore that bit`!
Just had a look at the POR website and their common Q&A section and it states it must be washed off or it will leave a powdery residue........Martin

[kartman24]

Do you think it is neccesary to overcoat the POR with a top coat such as thier stirlimg silver? My car has a flip front but surely won`t get that much in the way of UV light on it. If it does need overcoating can i do it before the POR is completly hardend so avoiding having the rub it with wet and dry to provide a key?....Martin

[caduceus]

kartman24 said:

Thanks for the reply, i phoned Frost`s to query the instructions about washing it off, the guy advised me to `ignore that bit`!
Just had a look at the POR website and their common Q&A section and it states it must be washed off or it will leave a powdery residue........Martin

Do not use Frosts, they don't know their arse from their elbows. There are other suppliers out there that give a better service.

[Englishman]

kartman24 said:

Do you think it is neccesary to overcoat the POR with a top coat such as thier stirlimg silver? My car has a flip front but surely won`t get that much in the way of UV light on it. If it does need overcoating can i do it before the POR is completly hardend so avoiding having the rub it with wet and dry to provide a key?....Martin

I didn't top coat the parts I'd painted with black POR 15 as I wanted them black anyway, but did top coat the parts I'd painted grey to match the lighter chassis colour. As you suggest, I did this before the POR coat had completely hardened.

IMHO, if you are careful and ensure you don't miss any bare metal, the only reason a top coat is needed is for cosmetic reasons.