Model Boat Mayhem - Forum

Technical, Techniques, Hints, and Tips => Painting, Finishing and Care. => Topic started by: olly4950 on August 23, 2013, 07:14:56 AM

Title: Primers do not mix
Post by: olly4950 on August 23, 2013, 07:14:56 AM
Could someone help please?
I have uses a plastikote primer on my boat my mistake and wish
to respray with the Halfords primer, however I have just tried a sample spray and
found that they react.
Does anyone have any ideas to how I can get over this problem.
With out Rubbing down please.
Regards
Olly4950
Title: Re: Primers do not mix
Post by: john44 on August 23, 2013, 08:41:09 AM
Hi Olly, how long did you wait before respraying with the Halfords primer,
If you don,t respray within 15mins you have to leave it 24hrs, if you have put
a thick coat on you may have to wait longer than that.
I have used both primers with no problems, if you give too thick a second coat
it may react. What I always do when over-spraying is to give it a LIGHT coat
and let that dry for 24hrs or longer then coat it up as desired.

john

Title: Re: Primers do not mix
Post by: Stavros on August 23, 2013, 09:45:39 AM
Sorry no other way but rub it ALL off as plasticoat is enamel and halfords is acrilic and WILL REACT


Dave
Title: Re: Primers do not mix
Post by: john44 on August 23, 2013, 11:38:52 AM
I stand corrected :embarrassed:

john
Title: Re: Primers do not mix
Post by: Brian60 on October 07, 2013, 08:09:57 PM
Halfords car paint is a cellulose based acrylic hence its bad smell. As with full size vehicles you can put enamel OVER cellulose but not the other way around. That is why you probably haven't had a reaction when spraying the Plastickote over the Halfords paint before.
Title: Re: Primers do not mix
Post by: TailUK on October 24, 2013, 09:35:42 AM
I hate to disagree with Brian56 but the majority of Halford's off the shelf rattle cans are acrylic based paint not cellulose.  That said it's still not good for you to breath the fumes and will definately react with Plastickote.  You're options would be to take the paint right back to wood or to carry on with the Plastikote.
Title: Re: Primers do not mix
Post by: Stavros on October 24, 2013, 01:43:36 PM
Tbh with you even carrying on with the Plasticoate there is a good chance it will react again....MMMM been there had the tee shirt and I am supposed to know better !!!!!!!!!!!!!!!
 
Just done a perkassa gloss over the primer and it reacted with the damn primer 5 months later ARGHHHHHHHHHHHHH
 
 
Dave