16 replies to this topic

[monkee-face]

bought some 3M sealsealer the other day apparently its the best stuff you can by according to my local paint shop. ive put it on every seam on my van undernith and the sprayed the lot with gravitex stone chip and ALLL the seam sealer as reacted and shivvled up its soo anooying as it took me ages to put it all one now i got to remove the lot again. has any had this before and can you reccomend a different make of sealer?
thanks rob

[Jordie]

I put some stone chip down inside my car on the floors. It reacted with the bitumen stuff thats lined the floors from the factory.

Ended up having to strip the floors right back, prep paint, stone chip and repaint. Was well annoying!

[panelbeaterpeter]

Was the sealer fully cured before you applied the stonechip? 3m sealer is very good, as is Gravitex, so it should have been fine.. Pics of the reaction would be a help.

[midridge2]

what did you use to smooth the sealer with?

[monkee-face]

i used my finger to smooth it in, seemed to go on fine. it was all dry etc, i had left it for 2 days even thought on the tube it says "paintable withing 15 mins" thats why i bought the pair as they had been reccomened by loads i just dont understand it
hers a pc of the front floor

[tommy13]

I used Tiger Seal. Good stuff but a pig to get off your fingers. Had something like this happen once after applying stone chip on Hammerite primer. I know how you feel.

Edited by tommy13, 03 January 2009 - 07:33 PM.

[jack_marshall]

I always use tigerseal.

Only problem Ive had is painting thinner based basecoat when the sealers not fully cured, that sends it crazy.

Just looks like its not fully cured. Is your garage rather cold?

[monkee-face]

I always use tigerseal.

Only problem Ive had is painting thinner based basecoat when the sealers not fully cured, that sends it crazy.

Just looks like its not fully cured. Is your garage rather cold?

yeah bloody freezing, howver i had heaters on when i done it. and before i stonechiped it it was well hard! realllyyyy annoying now i got to take it all back

[edi57]

U-Pol Tiger Seal is the only seam sealer I've ever used. Never had a problem with reactions but I think I have always left it to cure for a decent length of time.

[panelbeaterpeter]

There's nothing wrong with the sealer, either it wasn't fully cured, or you've applied the stonechip too quickly not letting each coat dry. The reaction pictured is caused by solvents in the stonechip attacking the edge of the sealer. Leave the sealer overnight, and apply the stonechip in light coats, allowing each to dry and you'll have no problems.

[monkee-face]

There's nothing wrong with the sealer, either it wasn't fully cured, or you've applied the stonechip too quickly not letting each coat dry. The reaction pictured is caused by solvents in the stonechip attacking the edge of the sealer. Leave the sealer overnight, and apply the stonechip in light coats, allowing each to dry and you'll have no problems.

ok
i did leave the sealer for like 2 days lol....just a question, what sort of gun etc do you use to spray on your stonechip. i have sealey underbody coating gun, in that pic is just one coat, it seems to come our fairly fast and alot of it, i used 2 cans on the underside of the van is that about right?

[Rosslin Racing]

the colder it is the longer the solvents take to evaporate.
in summer you can paint something and its touch dry in and hour or two, the same paint with and air/surface temprature under 10 degrees will take 12 hours or more. so if your painting you need the room and surface temprature to be above 10 degrees.

[monkee-face]

ahh.....how long would you reccomend i leave it for?

[Rosslin Racing]

you mean the roon temprature then until the drying time stated on the product has passed.

[panelbeaterpeter]

Ok in that case you're definitely putting the stonechip on too heavy, you can very the amount that goes on by using a regulator on the gun. I use a stonechip gun, same as a shutz gun.