Totally agree ESC. It took some real effort to make the flask and that was a boat load of SS sand to mix. His crucible for that mass of molten...
+1
Here's the build thread for my molding rig. My New Lost Foam Casting Rig | The Home Foundry I started with one GT-25 on the bottom and four G8s...
It's such a broad generalization because there are such a large variety of binding resins. Binders can range from professional materials like...
If you are just blowing CO2 from the surface with your mig torch that isn’t enough penetration. You need a needle/lance that you can insert into...
I don’t think the cracking would be a problem for single use but am not a fan of their mass or shape. I’ve seen his videos. I would have tried to...
Just need to experiment until you get the strength you need. Very dependent upon SS grade and grain size. If your CO2 is welding gas 75/25%, that...
Welcome NJ, Would like to see some pictures of you engine castings. A 400 cc v8 sounds interesting too Best, Kelly
That flaw is from the sand being displaced (“a leaker”). That is caused by either insufficiently packed sand, insufficient height of sand mold...
K-bond is also an option. Mixing up K-Bond Sand (Similar to Petrobond) | The Home Foundry Best, Kelly
Yes, here in the US is the similar. In fact, the first coat is usually used with a fiber/paper tape and is "setting" type compound, meaning it...
I took a spin back through this thread from the beginning. It's worth doing for anyone that is a serious lost foam caster and considering making a...
It can/will depend on the grade of SS and mesh size of your sand, but the criticality of this is to achieve core strength that is strong enough to...
It's probably a statement of the obvious, but don't plan on multiple pours using the same molding sand without allowing it thouroughly cool...
Not familiar with it. What is the density? If you have sodium silicate (water glass), you can use that as a binder for plain sand and cure with...
Separate names with a comma.
