

⚡ Cast like a pro, cure in minutes, impress for a lifetime!
Smooth Cast 65D is a semi-rigid urethane casting resin with Shore Hardness 65D, offering excellent impact resistance and abrasion durability. Its low viscosity ensures minimal bubble formation, delivering smooth, high-quality casts. With a fast 15-minute cure time and a simple 1:1 mix ratio, it’s ideal for rapid prototyping, model making, and creative projects requiring precision and toughness.










| ASIN | B00E3ZJ9XW |
| Best Sellers Rank | #55,742 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #469 in Sculpture Molding & Casting Products |
| Brand | Smooth-On |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (587) |
| Date First Available | July 23, 2013 |
| Full Cure Time | 15 Minutes |
| Global Trade Identification Number | 00751635429413 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 16.9 Fluid Ounces |
| Item Weight | 2 pounds |
| Item model number | 88559 |
| Manufacturer | Smooth-On, Inc. |
| Material | Urethane |
| Number of Pieces | 1 |
| Package Information | Bottle |
| Product Dimensions | 6 x 3 x 6 inches |
| Specific Uses For Product | Interior |
| UPC | 751635429413 |
| Unit Count | 1.0 Count |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |
L**M
Perfect for Starter Propmaker
To make this simple, the product is easy enough for a beginner propmaker with next to no experience/knowledge. Easy 1:1 ratio mixing, the resin is easy to roto cast, and hardens to a solid product. I am finally casting my own helmets and I couldn’t be more pleased with the quality. DISCLAIMER: the helmets I casted using this product have slight defects in them because of a mistake made on my end of making the silicone mold. If you’re silicone mold is done right, your castings will come out perfect, if not close to. Happy casting fellow propmakers! Please check out my social media for more pics and such, TheInFamousRebel on all social media apps.
K**Y
Excellent casting resin!
Absolutely LOVE this stuff! I used it for the first time to cast some pauldrons for a cosplay costume. I am totally hooked!! It works EXACTLY as advertised. Mix, pour/slosh, and get results in minutes. Smooth On has helpful Youtube videos to show how to use their products. I highly recommend this casting resin and have already bought more!!
B**N
cures fast, hard, and solid
this product is great. it cures very hard and solid, so if you are looking for something with a little more flexibility to it, then another product might work better. But it is very fast and I've had great results with it!
B**G
good quality. depends how thick you cast but for ...
used this to cast a helmet. good quality. depends how thick you cast but for my helmet it gave a nice small amount of flex that seem helpful for helmet when being impacted. I did some samples in a cup where i mixed in oil paints to dye the resin. worked well and cured normal. you can also add in some filler material to save on the expensive resin. I added very fine saw dust up to 1:1 ratio and it cured fine and still remained strong. i haven't tried slush casting with the saw dust mixed in yet.
B**O
Awesome stuff!
I had heard that it flowed just like water and cured into a strong bond... and they were right! The mixture starts off as a thin liquid capable of getting into small nooks and crannies with ease, and within 15 minutes, it becomes super solid. Love it. Edit: I took off one star. After using all of mine up I have on complaint: if the mixture isn't a near-perfect 1:1 ratio, it will either - take forever to fully cure. - won't fully cure and be this weird semi-hard cast. Other than that, the price is a bit high for my taste, but it's very effective when it works.
A**N
Pours easily. Sets fast. But be cautious of fumes.
I'm pretty happy with this casting resin. It sets up within half an hour of starting mixing. It sets up slower or faster depending on how hot it gets, and the reaction it undergoes while setting up generates significant heat. What that means in practical terms is that thin and small casts will take ~30 minutes before you can demold, while thicker and/or larger (non-hollow) castings can set up in ~10-15 minutes. The quick set time and thin viscosity make it great for roto-casting, which is hollow casting by rotating the mold while the resin sets. Expect to roto-cast at least 2 layers, and more like 4-6 for larger objects. It pours and mixes clear, but sets up opaque white, which will significantly affect whatever colors you mix in. For me to get a middle grey, I have to add a significant amount of black. Far more than I'd need for clear resins. I use powdered charcoal for black - you can get it for free from a half-burned log left over from a camp fire.
E**O
Very durable resin, but keep in mind the short working time
I used this resin to cast a recurve bow grip I had made a mold for. It works very well and I haven't had any issues with the several I've made. So far the parts have been very durable in regards to impacts and especially vibration from the bow. I made the grips so I didn't have to modify my original, and the cast versions have had two part putty added to them with no adhesion issues, and have also been sanded and shaped. The resin tends to clog sandpaper pretty quick, but that is somewhat expected. Releases from the mold quickly and easily, but I do use a mold release just to make sure. It is a fast setting resin with a short working time and tends to get pretty warm, so when using lower quality silicone for a mold it might degrade the mold a little bit quicker. I haven't experienced that yet though.
E**.
Work fast and follow package Instructions
This product is fantastic and makes excellent quality bushings and mounts .
S**D
Easy to use and great for making plastic items (if you use it alongside a mold). I wouldnt use this to make the mold but rather a different silicone mold product. Sets in 15 minutes. Use gloves when handling.
R**N
Great product. Expensive postage.
E**E
Bien
م**د
المنتج وصلني. تالف
M**T
This was my first epoxy project. I used it to encapsulate some electronics. I followed the instructions on mixing and pour time and it went exactly as they said it would.
Trustpilot
1 week ago
2 weeks ago