Search found 20 matches

by Space Garbageman
Tue Jun 14, 2011 8:14 am
Forum: Finishing
Topic: From spray can to airbrush bottle
Replies: 24
Views: 24356

So after decanting what should I use to thin Dupli-Color Sandable Primer, if at all? I can't tell if it's lacquer or enamel based.
by Space Garbageman
Mon Aug 02, 2010 6:38 pm
Forum: Construction
Topic: Fiberglassing
Replies: 8
Views: 8463

That's a good idea. If you're using polyestyer, get yourself a respirator rated for painting cars (basically any charcoal-filtered mask, one rated for VOC's- volatile organic compounds). Not as much of an issue with epoxy, though, but nothing wrong with being safer, either.
by Space Garbageman
Sun Aug 01, 2010 1:40 pm
Forum: Construction
Topic: Fiberglassing
Replies: 8
Views: 8463

Agreed, look into using epoxy for laminating. It has a better (longer) working time than polyester and it doesn't shrink. It's also stronger and won't have that sticky surface. It can also be thinned up to 30% with methanol after its been mixed, this can help to work it into the fibers. You can clea...
by Space Garbageman
Sat Jun 19, 2010 9:55 am
Forum: Construction
Topic: Best adhesive for MDF?
Replies: 6
Views: 5461

Wood glue 4, CA 0. Thanks for all the feedback. I'll keep y'all posted with some pictures soon.
by Space Garbageman
Fri Jun 18, 2010 7:53 pm
Forum: Construction
Topic: Best adhesive for MDF?
Replies: 6
Views: 5461

Best adhesive for MDF?

I'm building a model using 1/8 inch MDF for the main body panels. It's an angular, roughly box-like piece and all the sides have 3/8 inch flanges for joining. I've cut all my sections fairly precisely and they need to be assembled precisely as well, this thing has square sides. I really want to use ...
by Space Garbageman
Sun Jun 13, 2010 9:42 am
Forum: Construction
Topic: Tenax as resin adhesive?
Replies: 2
Views: 3156

As I suspected. Thanks for the confirmation, Ken!
by Space Garbageman
Sat Jun 12, 2010 6:56 pm
Forum: Construction
Topic: Tenax as resin adhesive?
Replies: 2
Views: 3156

Tenax as resin adhesive?

Ever use Tenax 7R as a bonding agent for cast resin parts? I was welding styrene parts to a styrene surface and using a part cast from Smooth Cast 300 as a temporary reference. The resin was taped in place and some Tenax got under it, and now it seems pretty well bonded in place. I usually use CA fo...
by Space Garbageman
Tue Feb 09, 2010 12:15 pm
Forum: Scratchbuilding
Topic: Acrylic or styrene sheet help for new guy?
Replies: 15
Views: 22642

Styrene will bond to acrylic very well with Tenax or MEK.
by Space Garbageman
Sun Feb 07, 2010 3:43 pm
Forum: Construction
Topic: Smooth-On resin alert
Replies: 10
Views: 12475

Thanks for the intel. I've been soaking my castings in dish washing machine detergent and water, and using a soft brush. Then I wipe them with lacquer thinner and prime them with a lacquer-based primer like Mr. Surfacer or Tamiya's Surface Primer. So far so good. I figure if I can't easily scrape th...
by Space Garbageman
Thu Jan 28, 2010 3:45 pm
Forum: Construction
Topic: Smooth-On resin alert
Replies: 10
Views: 12475

What about lacquer thinner? Doesn't it contain acetone anyway?
by Space Garbageman
Mon Jan 18, 2010 3:30 pm
Forum: Construction
Topic: Styrene cladding
Replies: 3
Views: 4646

Styrene cladding

I've seen a number of builds that involve bonding thin styrene sheet over sculpts of wood or foam, with the purpose of building up panels or providing a surface for scribing or for gluing additional details. My question: what's the best way to bond the styrene sheet to the surface? I'm going to assu...
by Space Garbageman
Fri Dec 18, 2009 3:29 am
Forum: Construction
Topic: Smooth-On resin alert
Replies: 10
Views: 12475

Just a update: The parts I immersed have continued to warp, almost curling up into a toenail clipping. Not good!
by Space Garbageman
Fri Oct 23, 2009 2:42 pm
Forum: Construction
Topic: Smooth-On resin alert
Replies: 10
Views: 12475

You shouldn't need to use release if you're casting out of silicone rubber molds, but I have been using urethane rubber (Smooth-on's ReoFlex 30). I like the way it pours, and it doesn't need de-gassing. Needs some kind of release, though.
by Space Garbageman
Fri Oct 09, 2009 7:37 pm
Forum: Construction
Topic: Smooth-On resin alert
Replies: 10
Views: 12475

Smooth-On resin alert

Anyone using Smoothcast 300 be advised: Smooth-On's FAQ page suggests using acetone to remove silicone-based release agent from the cast part prior to painting. Go ahead and wipe it on, but DO NOT immerse the casting, it will grow, warp, or otherwise deform, as well as soften and crumble. I just fou...
by Space Garbageman
Sun Sep 13, 2009 7:29 pm
Forum: Construction
Topic: Release Agent Remover
Replies: 2
Views: 3160

Yeah, that's good, thanks, I guess automotive refinishing products will be where I'll look.
by Space Garbageman
Sun Sep 13, 2009 1:17 pm
Forum: Construction
Topic: Release Agent Remover
Replies: 2
Views: 3160

Release Agent Remover

What should I use to remove Mann's Ease Release 2305 from resin parts so paint will stick? I'm casting Smooth-On 300 into Smooth-On Vitaflex (urethane) rubber molds. 2305 is silicone-based and releases better than the 300 spray, but now even laquer-based primer fish-eyes like crazy on the parts. I c...
by Space Garbageman
Sat Jul 18, 2009 8:10 pm
Forum: Finishing
Topic: types of decal fixatives
Replies: 2
Views: 2392

types of decal fixatives

Anyone have experience using artist's matte fixative spray to cover and protect decals instead of hobby-type products like Testors Dullcoat? It seems like they're both intended for the same use, but the fixative spray might be a thinner "coat"?
by Space Garbageman
Thu Jul 16, 2009 7:41 pm
Forum: Construction
Topic: Got Resin?
Replies: 53
Views: 179688

Any type of CA adhesive (super/crazy glue) should bond resin to styrene.
by Space Garbageman
Thu Jul 16, 2009 7:30 pm
Forum: Construction
Topic: Bondo as cement
Replies: 4
Views: 3256

Bondo as cement

I'm considering using bondo (generic small b) as a gap-filling adhesive. It's to bond MDF to acrylic tube. I know it sticks well to both materials and I plan to use "plastic thinner" to make it more flowing. Anyone ever try this sorta thing? I know it's not as strong as epoxy, but...
by Space Garbageman
Sat Nov 08, 2008 4:23 pm
Forum: Scratchbuilding
Topic: Dissimilar plastics cement
Replies: 9
Views: 18201

Dissimilar plastics cement

Anyone know what CYC cement is? The Plastruct website lists it as used for joining styrene/ABS/butyrate/acrylic to each other. I'm used to using Tenax for all my plastic welds, but that's just for styrene. What do people like to use to join styrene to acrylic or ABS? And maybe related: what is the b...