PAINT PROBLEMS

[MODELFARMER]

OK

This is a big problem

all the parts have been done with primer, which normally for me gets rid of this problem, but seems not this time, anyone found methods to prevent this??

halfords primer

john deere paint

[Tractorman810]

over spray and paint not mixed enough mate, leave them to dry,next day leave the paint tin in hot water for 5 mins, shake for 5 mins and spray in light coats, it should cover it no probs,

[MODELFARMER]

over spray and paint not mixed enough mate, leave them to dry,next day leave the paint tin in hot water for 5 mins, shake for 5 mins and spray in light coats, it should cover it no probs,

the affected roofs will need blasted, i hit them with a heavy coat to try and cover up made it worse!!

[PDC]

The problem is JD have changed their paint supplier and it is cack :(

Try putting on really light coats with a few minutes between coats ;)

[Gav836]

Look like some of my Beet harvesters do when I have trouble with silicone spots, as has been said, very light and thin coats at intervals will sort it. As you've found, swamping it with paint will make it worse. Try cleaning the parts with panel wipe before painting them as that will help

[powerrabbit]

This problem is usually due to the surface not de-greased enough even if the primer went on ok. As said, warm the paint, that will help or warm the surface to be sprayed with a hair dryer. Having said that though, some of the OEM paints in aerosol cans are shite anyway. I use 'Plasikote', you can get a very good range of colours in it and some very good matches to original colour.

[MODELFARMER]

sorted with sand blaster

no primer just hit with green

[JC]

Are they resin Ricky??

[MODELFARMER]

Are they resin Ricky??

Yes

cma bonnets

self poured roofs

[FW]

Yes

cma bonnets

self poured roofs

Silicon spots then......how well and how are you washing them? \ ;)

[MODELFARMER]

Same as usual, just all of a sudden

blaster has it sorted now

[allis8550]

Perhaps it's imcompatible paints, Halfords primer is acrylic, don't know about JD paint, but if its not the same there may be a reaction.

[MODELFARMER]

Perhaps it's imcompatible paints, Halfords primer is acrylic, don't know about JD paint, but if its not the same there may be a reaction.

Primer says it work with cellulose so not that

[alpinefocus]

you cant beat a good rubbing over with some wet and dry aswell

[Brewingale]

Possibly two problems

1  You are not de-greasing the surfaces properly.

2  You are applying the paint far to thick, four coats of thin are better than one thick, be patient it may take two days but it will be worth it.

[james f]

Primer says it work with cellulose so not that

I'd still say it a serious issue though Ricky. As far as possible paint and primer shold be of the same type be it cellulose, enamel acrylic or whatever. As you have found out also, roughening the surface significantly improves 'keying'. Was it the primer that didnt go on first or was it just the top coat that was the problem? If it was just the top coat, sanding down the primer before the top coat helps as well.

[MODELFARMER]

Possibly two problems

1  You are not de-greasing the surfaces properly.

2  You are applying the paint far to thick, four coats of thin are better than one thick, be patient it may take two days but it will be worth it.

thanks but mate . . . the show is in a week

gulp

[JC]

Rushed models are messy models......  \

[MODELFARMER]

Rushed models are messy models......  \

not rushed

just done overnight