Not if you seal the inside of your Lego box with petroleum jelly first. I just smear a light coat on to kind of fill all the little cracks then run a little...
33468
lneal27299
Dec 23, 2009 7:43 pm
... Interlocking the edges is the way to go. You probably could butt join the walls but I'm sure it would leak a little. No need to seal, RTV doesn't stick to...
33469
Stephen Auslender
ssculptor
Dec 23, 2009 9:44 pm
I do not know about the rest of you guys, but I weld only out of doors. Never inside. Yes, it can be a bother in the winter. I once made a set of ornate...
33470
bslack007
Dec 24, 2009 11:17 am
I've been using Lego bricks ever since I started casting. I build my boxes, then I use packing tape to cover the inside and bottom of the bricks. Works...
33471
Scottcrew Enterprises...
scottcrew1
Dec 24, 2009 3:01 pm
If using a Platinum Silicone, I'm not sure how the petroleum jelly would work... So, if one is using Platinum Silicone, I suppose one would need to keep in...
33472
daniel caso
d.caso
Dec 24, 2009 8:19 pm
In the website of TAP products there is a page with a compklete list of materials uncompatible with the Platinum products. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
33473
Ray K
kleenax
Dec 24, 2009 8:28 pm
I use petroleum jelly (Vaseline) exclusively for platinum-cure (addition cure) RTVs. I usually mix it with common Mineral Spirits for an excellent ...
33474
Scottcrew Enterprises...
scottcrew1
Dec 25, 2009 1:28 pm
Oh, DUH!!! Thanks for the reminder... I actually do remember using the vaseline/denatured alcohol combo for a mold release, way back when I was first starting...
33475
vintagepowerplus
vintagepower...
Dec 25, 2009 11:51 pm
hi guys i am new to this group hi guys i have posted some pictures under barry,s parts i would like your comments, i am prepairing to make a mould out of...
33476
Nozmo King
gnome9us
Dec 26, 2009 3:36 am
The LEGO blocks make a pretty god fit. You will get a little bit of flash on the outter part of your molds. Just press the blocks firmly together. I have been...
33477
gnome9us
Dec 28, 2009 1:45 am
Members of the group, I have an issue that i hope to find some resolve to. The problem I have is that some resin castings I have made and have gotten from...
33478
MNoKNo@...
polyresin2003
Dec 28, 2009 2:29 am
Are you first spraying your resin parts with an primer? Best and only primer to use is an sandable automotive primer. I ... From: gnome9us <gnome9us@...>...
33479
Nozmo King
gnome9us
Dec 28, 2009 2:40 am
Yes, I have gotten mixed result with and without using primer. I have also cleaned the parts before painting with Isopropyl alcohol, or paint thinner and still...
33480
MNoKNo@...
polyresin2003
Dec 28, 2009 4:44 am
I do not know what type of resins you are using but I can tell you some of my bad experience with urethane resins that I hope will help you with your dilemma....
33481
Nozmo King
gnome9us
Dec 28, 2009 4:54 am
Resin was Smooth-ons, Smoth-cast 300. The temp could be a possible culprit for me as I was spray painting in a cool basement and outdoor was about 50...
33482
Chris R Chivers
krazymanchris
Dec 28, 2009 5:51 am
A simple step that is easy to forget when dealing with resin is to wash/rinse the parts before painting. Forgetting this step and you'll likely get paint that...
33483
Mike Brose
puppetsnprops
Dec 28, 2009 6:00 am
I had a similar problem. I was using Smooth Cast 300 at the time. It was a long time customer that regularly bought our cast puppet parts who never had a...
33484
Mike Brose
puppetsnprops
Dec 28, 2009 6:13 am
Must be late.... found several typos. But thought I better address this one..... "I use 4 different brands of urethane resin depending on what I'm casting...
33485
vintagepowerplus
vintagepower...
Dec 28, 2009 9:11 am
hi guys please forgive my questions but i am new to moulding i have just moulded one side of my mould and wandered if silicone will go harder if left to stand...
33486
rocky@...
iron_wigwam
Dec 28, 2009 11:22 am
Barry, Any PICS would be helpful. You can use a stiifer silicone shure 45 if you wish. Rick . [Non-text portions of this message have been removed]...
33487
Ray K
kleenax
Dec 28, 2009 1:05 pm
Hello Barry; Sorry to tell you this, but you should always have your master finished to an appropriate finish before you ever begin the molding process. Once...
33488
Mike Bauers
mwbauers
Dec 28, 2009 6:19 pm
At this point, I'd be thinking about pulling the master out of the RTV and perfecting the finish of it's surface. The present mold can be sliced into small...
33489
Nozmo King
gnome9us
Dec 29, 2009 2:03 am
Mike, Thanks for the input. Lots of info in your experiances with different materials. In my case I used the same mold material, (oommoo 30) for the...
33490
Dave
drescher3
Dec 30, 2009 11:05 pm
Hello all and happy new year! Here is a link to my latest e-zine...it's a lost wax cast in brass. http://metalshop.homestead.com/brass-duck.html Dave D...
33491
Cindy
resinobsessi...
Dec 31, 2009 2:35 am
Hi, Happy New Year and may 2010 be very prosperous! I'm using Silicone Inc silicone with the blue activator to make molds that I sell. I'm having success with...
33492
NoseGoblin
warwickyankee
Jan 1, 2010 12:00 am
Baby powder is used to get the resin to wick to the surface and pick up small details...No need to clean it it is absorbed into the resin. To rejuvinate a mold...
33493
NoseGoblin
warwickyankee
Jan 1, 2010 12:01 am
Its been 3-4 years since I made some molds... long enough for the Silicone makers to make changes good and bad. I am looking for some advise on the available...
33494
vintagepowerplus
vintagepower...
Jan 1, 2010 12:05 am
hi ray thanks for the reply fortunatly the mould is very good and i think will work fine basically the mould will be a 2 piece mould as can be seen in photos...
33495
Ray K
kleenax
Jan 1, 2010 12:17 am
Hey Barry; with addition-cure RTV (platinum) molds, after they have cured overnight, I usually place them in the oven @ 150 degrees F for about 4 hours before...
33496
Mike Brose
puppetsnprops
Jan 1, 2010 3:00 am
... __________ Information from ESET Smart Security, version of virus signature database 4733 (20091231) __________ The message was checked by ESET Smart...
