Mould Release Wax/Agent

RossM · 14-09-2009, 10:47 AM

Any reccomendations for release wax? need to get hold of some soon,
Cheers

formula69 · 14-09-2009, 07:43 PM

Mirror Glaze

lloyde · 14-09-2009, 08:14 PM

Quote:

Originally Posted by formula69

Mirror Glaze

old hat
use tr wax + pva
http://www.henleycraftfibreglasssupplies.co.uk/

Tony Davis · 15-09-2009, 08:15 AM

Quote:

Originally Posted by formula69

Mirror Glaze

Works for me.

Jono · 15-09-2009, 08:20 AM

Quote:

Originally Posted by Tony Davis

Works for me.

What he said..and I'll add...if ever I catch anyone using "liquid magic" or whatever "labour saving" shite is flavour of the month... on any molding I've paid for...I'll turn them inside out....

kitten · 15-09-2009, 09:42 AM

Quote:

Originally Posted by Jono

What he said..and I'll add...if ever I catch anyone using "liquid magic" or whatever "labour saving" shite is flavour of the month... on any molding I've paid for...I'll turn them inside out....

I agree.

Lloyde, Are you suggesting PVA over a tr wax (what is a tr wax)?

PuppiesBalls. Two small but important questions, what are you trying to release, and what finish are you after?

kitten · 15-09-2009, 09:50 AM

Quote:

Originally Posted by lloyde

old hat
use tr wax + pva
http://www.henleycraftfibreglasssupplies.co.uk/

Just had alook at your web page.
If mirror glaze is old hat why stock it, and why do you not list this wonderful modern tr wax or even PVA.

Jono · 15-09-2009, 10:15 AM

Quote...about TR wax

"A high production paste release with excellent breakdown for fast even coverage.

Formulated for fast drying with a pure carnauba base.

Extremely easy to apply and wipe.

If you are using on a new fibreglass mould please read carefully for best application.
After you have finished preparing the surface of your mould wash down with hot soapy water, let dry and apply the first coat of wax, using small circular motions apply, let dry for five minutes and buff off with a clean cotton cloth, and again with another , keep these cloths seperate and use the second one after the first each time , this will ensure you are not immediately creating any uneccessary build up.
Repeat this process at least twelve times at least an hour between each application. Do not apply wax within the hour as you will just be dissolving the one you have just put on.
When all the waxes have been applied for insurance it's best to apply a thin coat of PVA release agent to the first lift, let dry, then apply 2 % catalyst to your gelcoat minimum, this should cure of in 20 minutes or so.
It is then advisable to apply just 2 layers of matting with 2% catalyst added to the polyester resin, what you are doing here is breaking the mould in, if you go flying in with a 4 - 6 mm laminate you will risk having the part adhere itself to the mould, believe me! Don,t get me wrong many times you will get away with just applying six waxes to the mould and taking your panel straight off without breaking the mould in, but after it's happened to you once with a part being glued into the mould you will see that it's easier spending a little more time breaking the mould in.

After the first breaking in lift, wash the PVA release agent off with hot soapy water, then apply another 3 - 4 waxes, each again with one hour between each.
Now you can safely Gelcoat your mould (2% Catalyst minimum), and apply your reinforcement.

Please remember with mould making patience, care and understanding are vital for success."

So..pretty much identical to "mirror Glaze" then?

Paul E · 15-09-2009, 11:49 AM

My dad's used Mirror Glaze for as long as I can remember and he swears by it

kitten · 15-09-2009, 11:53 AM

Twelve coats of wax and PVA? yeah right.
How the hell do you get the PVA to stick to the wax.
whoever wrote that has adenoid problems and was rejected from HSE for being too fussy.
Still don't know what tr wax is apart from the fact it contains carnauba wax, same as mirror glaze.

big_johnny · 15-09-2009, 03:34 PM

Meguiar's 8 Mirror Glaze. gold tin.

jw. · 15-09-2009, 10:13 PM

Quote:

Originally Posted by kitten

How the hell do you get the PVA to stick to the wax.

It does. You wouldn't expect it to but just wipe it over (once) using a fine sponge - job done.

Tony Davis · 15-09-2009, 10:31 PM

Other than moulding garden gnomes or flower pots, I can't think of any reason why you'd want to use PVA.

jw. · 15-09-2009, 10:37 PM

Yeh, well, if you're needing something quickly and you're pushing the curing time for the mould, it's a little bit of insurance.

lloyde · 15-09-2009, 11:16 PM

Quote:

Originally Posted by kitten

Just had alook at your web page.
If mirror glaze is old hat why stock it, and why do you not list this wonderful modern tr wax or even PVA.

we use mirror glaze to seem split mould and people want to buy it so we sell it. but like every thing there is better out there, things improve in time.
if i was to make a i would not use wax I’d use a chemical release agent but that’s expensive but the results are far better, and a lot less work, so with 30 years experience and an NVQ think i should know. but the question was what wax .
e.g. a mould i made
http://www.henleycraft.co.uk/RaceCar...%20Project.htm
lets see some of the moulds you made now

we don’t list every thing we try to advise people when we know what they are trying to do, boat,car,roof ,pond,mould .
PuppiesBalls if you pm me your phone number i will ring you on this .

Jono · 16-09-2009, 07:19 AM

Quote:

Originally Posted by lloyde

..lets see some of the moulds you made now

.

...you dope...there's at least two experienced boat builders who have replied to this thread....don't make yourself look any worse by challenging them.....and there are people who have seen the results of "liquid magic" when used as a labour saving aid....

kitten · 16-09-2009, 11:47 AM

Quote:

Originally Posted by lloyde

we use mirror glaze to seem split mould and people want to buy it so we sell it. but like every thing there is better out there, things improve in time.
if i was to make a i would not use wax I’d use a chemical release agent but that’s expensive but the results are far better, and a lot less work, so with 30 years experience and an NVQ think i should know. but the question was what wax .
e.g. a mould i made
http://www.henleycraft.co.uk/RaceCar...%20Project.htm
lets see some of the moulds you made now

we don’t list every thing we try to advise people when we know what they are trying to do, boat,car,roof ,pond,mould .
PuppiesBalls if you pm me your phone number i will ring you on this .

Hi Lloyde,
I'll try and address your points in the order raised, but it is a bit of a rant.
If there is better out there, why are all the most reliable that I have come across are still based on a natural wax?

I'm sure you are wonderful, but you still didn't answer my question, why don't you stock what you recomend, or even an all singing and dancing no effort wipe on wipe off stuff?
All you did was try to put me down. Sorry but I don't feel the need to boast, and I don't have time to write out a CV .

Nice car.

Tony Davis, You're wrong mate.

Tony Davis · 16-09-2009, 12:08 PM

Quote:

Originally Posted by kitten

Tony Davis, You're wrong mate.

Not the first time, sure it won't be the last!

Hydrostream · 16-09-2009, 10:33 PM

PVA, you can get a pretty decent finish with it if you can spray very well, I cant so I dont use it !

Renegade · 17-09-2009, 09:41 PM

thats what i used. had no problems and that was recomennded by other boat builders but i guess each to their own.