The 7 Best Heat knives For Cutting Foam (2023 reviews)

We consider a heat knife for cutting foam 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.

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Our Top Picks:

Best Overall: Buy: Winons Heat Knife For Cutting Foam READ REVIEW

Best For price: Buy: GOCHANGE Heat Knife For Cutting Foam READ REVIEW

Best For Cutting Foam: Buy: DOMINOX Heat Knife For Cutting Foam READ REVIEW

Best For Plastic: Buy: Rongter Heat Knife For Cutting Foam READ REVIEW

Best For test method: Buy: Huanyu Hot Knife READ REVIEW

Best For Use: Buy: Rongter Hot Knife Foam Cutter READ REVIEW

Best For Cutting sponge: Buy: Huanyu Heat Knife For Cutting Foam READ REVIEW

Best Overall: Winons Heat Knife For Cutting Foam

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Here, we present knife that manages to win our hearts. It's the winons heat knife for cutting foam and it's widely considered as one of all-around great knife you can buy. This is a great little tool to have for arts and craft. The plastic housing on removable tips is cheaply put together, comes apart easily and easily enough to be glued together or plastic welded. It cuts easily and leaves no messy pieces to clean up. The on/off switch is a nice safety feature too.

This product does a great job cutting foam using the wire attachment. It is very useful for arts and crafts. The different attachments do a great job for many different tasks and the build quality of the tool is solid. It is very easy to use and maneuver and you can create numerous masterpieces with a little bit of time and passion. It is perfect crafting tool for any styrofoam project.

• Works great for projects and for decorating
• Cuts foam and plastic very easily and heat up quick
• Straight, super smooth cuts with no mess

Best For price: GOCHANGE Heat Knife For Cutting Foam

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Not everyone likes to purchase knife for their daily usage, but the gochange heat knife for cutting foam would be an anomoly. This item is only usable for thin foam. It can barely cut styrofoam. It does require being plugged in, but it has a pretty long cord. The Foam cutter heats up quickly, and the hot wire will reach. It heats up fine & quickly but once you start cutting you have to give it a few seconds break to keep cutting.

It makes the job easy and clean. The handle is moderately thick and non-slip, so you have a full grip without stressing it out on large projects.

• Very easy to use and maneuver
• Works great for cutting foam board
• Heats up fast, easy to use

Best For Cutting Foam: DOMINOX Heat Knife For Cutting Foam

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The dominox heat knife for cutting foam is capable of outshining several other knife featured in this list in overall features for the price point. It is usually well and widely used in roof insulation and external wall insulation composite system. It is very hot and powerful. It is a pure copper induction coil inside the styrofoam cutter, which adopts an innovative circuit design to heat fast and evenly. It can cut lightweight foam, kt board, polyurethane, polyethylene, eps, xps, epp, eva, epe, pu, polyester foam, sponge, rubber, nylon and fiber, etc. It can be used as a sculpture tool, and even (slowly) be used at right angles where the edge of the "blade" melts the material from the side.

The blade is thin enough for exacting measurements, and easy to use. It is very suitable for use in stores and packing houses.

• Cuts through foam board like butter
• Makes this task easy and effortless
• Lot of satisfied buyers

Best For Plastic: Rongter Heat Knife For Cutting Foam

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Rongter line of knife come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. It is ideal for use in architectural modeling, design, and diy projects in the home, school, or workshop. It can cut such as xps, eps, low density sponge, plastic extruded board, foam, pearl cotton, kt board and so on. The adjustment knob on the top of the hot knife foam cutter can adjust temperature and power. It heats up within 5 seconds of pulling the trigger, stays hot throughout the entire cut (some of them are as long as 8' continuous) and cuts clean, straight lines. It can prevent the blade overheating during use, prolong the service life of the product.

The built-in air cooling system makes the electric hot knife work continuously. It is hot without it burning something.

• Easy to use and comes in a sturdy case
• Good brand reputation

Best For test method: Huanyu Hot Knife

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The huanyu hot knife might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. The pure copper foam cutting tool makes cutting faster, and the edges of materials can fuse quickly without generating debris. The blade of the electric knife is sharp. It can be cut, and most materials with low melting point can be used. The product can cut silicone-based items during the test, but it cannot cut thick or too hard items.

The hot knife weighs only 395 g, and the 3 m power cord makes it easier to move. It is more suitable for cutting sponge, foam, pearl cotton, kt board, insulation board, pvc pipe, rope braid, expanded polystyrene (eps), extruded polystyrene (xps), etc. The electronic micro switch can be turned off when you leave your hand to ensure the safety of users.

• Safe fabric cutter, press and hold the switch to heat, release to immediately stop
• Compact integrated body, better holding feeling
• One of the new comers and featured product

Best For Use: Rongter Hot Knife Foam Cutter

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This is the second generation of the latest foam knife, which can work continuously, if you want a hot knife that can work continuously. It’s got a nice strong carry case that feels really solid. It can cut such as xps, eps, low density sponge, plastic extruded board, foam, pearl cotton, kt board and so on. It comes in an actual case so that all the parts stay together and the knife itself cuts through styrofoam so much better and easier than using a regular knife.

The adjustment knob on the top of the hot knife foam cutter has 16 positions to adjust temperature and power. It can ‘sculpt’ when needed to add to that it is a great value for speciality tool.

• Great for cutting pick and pluck foam
• New and hot release

Best For Cutting sponge: Huanyu Heat Knife For Cutting Foam

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate knife. The huanyu heat knife for cutting foam is exactly that - it's a simple knife that hits all the right notes. It is a comprehensive company dedicated to building high-quality brands and service-oriented. It has a dedicated production and sales department responsible for manufacturing and promotion, as well as a complete after-sales service system. The sharp blade allows the edges to fuse quickly to avoid loose lines and achieve silky cutting.

The straight knife is more suitable for cutting sponge, foam, pearl cotton, KT board, insulation board, PVC pipe, rope braid, expanded polystyrene (EPS), extruded polystyrene (XPS), etc. The Electronic micro switch can be turned off when you leave your hand to ensure the safety of users. The hot knife weighs only 395 g, and the 3 m power cord makes it easier to move.

• Compact integrated body, better holding feeling
• Delivers what they promise