The 7 Best Heat forming plastics (2023 reviews)

We consider a heat forming plastic to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Polly plastics Heat forming Plastic READ REVIEW

Best For arts: Buy: Materialix Heat forming Plastic READ REVIEW

Best For making custom finger splints: Buy: Polly plastics Moldable Plastic READ REVIEW

Best For small Repairs: Buy: Jxe Jxo Heat forming Plastic READ REVIEW

Best For temporary retainer: Buy: Instamorph Heat forming Plastic READ REVIEW

Best For cosplay props: Buy: Betionol Heat forming Plastic READ REVIEW

Best PREMIUM: Buy: Sintron Heat forming Plastic READ REVIEW

Best Overall: Polly plastics Heat forming Plastic

Buy on Amazon

If you want nothing short of the optimal plastic for your regular usage, this polly plastics heat forming plastic is certainly a wise investment. The Polly Plastics Pellets are easy to use and makes the process quick and easy. Soft and moldable at a temperature one with asbestos-like fingers can still handle it, it cools to a relatively stiff but not brittle white plastic, in almost any shape one can form it into. It is used to the different material but makes some nice durable keychains.

This plastic has the rigidity needed for most applications while still offering a little give for when you need a part that can move a little. It has an almost runny consistency. It’s as stiff as normal plastic as well so it’s rigidity is good for many uses. This is enough to make about 20 custom anti-snoring teeth guards. The material is phenominal in its properties allowing for unlimited creative projects. It is fast and super easy to use.

• Fun to play with, makes fabricating mounts easy
• Super easy to use after you play around with for a bit
• One of the new comers and featured product

Best For arts: Materialix Heat forming Plastic

Buy on Amazon

If you often find yourself scrambling for convenient and suitable plastic, materialix heat forming plastic is your end point. This moldable plastic is great for small pieces. It is easy to use and makes great accent pieces. The main quantity of beads is already translucent, so you can add as little as you want of any of the colored beads, Countless possibilities. It is also really great for making tools and things where function is more important than cosmetics.

This stuff is amazing, quick, easy to use, versatile, and durable. It is pliable when hot and firm when cooled. It is great for fixing zipper pulls. The plastic is easy to work with, melts quickly in boiled water, and isn't too hot to handle.

• Kind of fun, like a grade-school science experiment that protects your stuff
• You get 6 ounces of raw plastic plus six small bags of coloring
• You can reheat several times as long as it doesn’t get contaminated

Best For making custom finger splints: Polly plastics Moldable Plastic

Buy on Amazon

Polly Plastics line of plastic come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. This stuff is perfect for making custom finger splints. It is used to the different material but makes some nice durable keychains. It is great for crafts, art projects, home repair, model making, toys, cosplay costumes/masks and prototyping. It removes very easily, and the packaging states it is non-toxic. It is very easy to work with, turns from white to clear in hot water and then becomes pliable.

It is very easy to heat up, they cool down rock hard, and can be re-heated to continue working with. It has an almost runny consistency. It is fairly flexible when cooled, but solid, not brittle. It is great for fixing random things around the house.

• Moldable plastic in pellet form is super fun medium to play with
• Fun to play with, makes fabricating mounts easy
• New and hot release

Best For small Repairs: Jxe Jxo Heat forming Plastic

Buy on Amazon

Jxe Jxo has been making great plastic for years, thanks to a combination of clever design and appropriate materials. Formable plastic perfect for repair projects around the home, it can be molded into any shape, once dry and hardened it can be cut with scissors, you can also drill it, carve it, thread it and paint it too. These tiny beads can be put in a mug or small glass added with water just a bit over the top of them, and microwave. It is super easy to mold, can be used for any type of item you want to mold.

It is an lightweight, polyester thermoplastic plastic pellet that becomes moldable when warm (150 deg f) and solidifies at room temperature. It is easy to smooth simply by heating it slightly. It is suitable for schools, home and other places to make a variety of props and crafts, as long as you can think of it.

• Useful for crafts and some small repairs
• Moldable thermoplastic beads, is simply a fascinating product
• Material turns clear in hot water

Best For temporary retainer: Instamorph Heat forming Plastic

Buy on Amazon

Compared with other plastic in this category, the instamorph heat forming plastic has a convenient design. This stuff is super awesome for both household and craft projects. It can be painted, machined, carved or attached to other materials. It can reuse with hot water. It's fun to make any shape you want and it's easy to use. This stuff is amazing, and if you have some patience and are even slightly creative, you will have no trouble making a replacement tooth with this product.

It's great for all ages and skill levels, it can be sculpted with your hands or tools, pressed around an object to make a mold, or pushed into a mold to create a replica tooth with this product. This is just fun to play with. The polymorph plastic is amazing. This is perfect for someone that cannot get to the dentist.

• Strong and sturdy once it sets
• Great product for making a tooth
• Delivers what they promise

Best For cosplay props: Betionol Heat forming Plastic

Buy on Amazon

The betionol heat forming plastic's material feels more premium than its price would suggest. The material of this item is a lightweight polyester thermoplastic which acts like clay when warm, but solid and strong when it cools down. It is non-toxic so aside from industrial applications, it's also fun for ages and it can be used over and over again. It works very well to make custom molded plastic parts.

It is easy to snap into place over and over again. It’s easy to use, requiring you to heat these pellets up in hot water, making them soft and pliable. It is non-toxic and has no chemical smells.

• Clear and pliable under warm water
• Thicker parts can be (carefully) carved or drilled
• Dries fast and turns white out of water
• Amazing stuff, can be used to make flat molds for resin

Best PREMIUM: Sintron Heat forming Plastic

Buy on Amazon

Sintron offers a variety of plastic for personal choice and yet maintaining quality in all the variants. This thermoplastic is very easy to use. It can be shaped like clay and hardens to a hard non bendable plastic once cooled. It melts nicely in a bowl of hot water. It's also nice to make modifications to tools to make them more ergonomic. It makes the material reusable.

It comes with heating by water, it can be molded by your hands into any kinds of shapes or charactors. It can be softened and reworked with additional heating.

• Easy to mold (just heat in hot water, reheat to reshape) and is durable
• Very easy to use and can be used for tons of things
• Is reusable, and east to shape