STEINEL 6785 Review

Using a hot air gun is only half the story. For many jobs — welding plastic sheeting, sealing roofing membranes, or pressing down heat-shrink tubing — you need to apply consistent pressure to the heated material at exactly the right moment, while the surface is still hot enough to bond but not so hot that it deforms. Doing this with your fingers is painful at best and dangerous at worst. A pressure roller solves the problem: it is a heat-resistant wheel on a handle that lets you press down firmly and evenly on hot materials without burning yourself. It turns a two-handed juggling act — hold the gun in one hand, press with the other, try not to touch the hot spot — into a smooth, controlled workflow. For professional roofers, plastic fabricators, and anyone who welds thermoplastic materials with a heat gun, a good pressure roller is not optional equipment. It is the tool that makes the weld actually hold.

Steinel's 006785 is a 40 mm wide silicone pressure roller designed as an accessory for hot air gun work — specifically, for pressing down materials that have been heated for welding, sealing, or shrinking. It is not a powered tool; it is a hand-powered roller made from heat-resistant silicone that can be pressed directly against hot surfaces without melting or degrading. The 40 mm width and 35 mm roller diameter provide a good balance between coverage and manoeuvrability — wide enough to make progress on flat seams, narrow enough to follow curves and work in corners. The silicone material is key: unlike metal or hard plastic rollers, silicone conforms slightly to the surface, applying even pressure across the full width of the roller and reducing the risk of tearing thin or softened materials. It is also non-stick, so melted plastic and adhesive residue do not build up on the roller surface. When choosing a pressure roller, consider the width — 40 mm is a versatile general-purpose size — and the handle design. A roller that is comfortable to hold and easy to apply pressure with will be used; an uncomfortable one will sit in the drawer. The Steinel 006785 is specifically designed to complement Steinel hot air guns, but it is compatible with any hot air workflow that involves pressing heated materials.

This brief review covers the Steinel 006785 silicone pressure roller. We look at what materials and jobs it suits, how the silicone roller performs compared to metal alternatives, and whether this specialised accessory is worth the investment for your hot air toolkit.

The Steinel 006785 is a 40 mm wide silicone pressure roller designed for use alongside hot air guns during plastic welding, membrane sealing, and heat-shrink applications. The roller head is made from solid heat-resistant silicone with a diameter of 35 mm, mounted on a comfortable hand grip. The total tool length is approximately 32 cm, and it weighs just 179 g — light enough to use for extended periods without hand fatigue. The silicone material withstands direct contact with heated surfaces without melting, degrading, or transferring contaminants to the workpiece.

The 40 mm roller width of the 006785 is a well-chosen compromise. It is wide enough to make efficient progress along a flat seam — such as welding overlapping PVC sheeting or sealing a roofing membrane joint — but narrow enough to follow gentle curves and fit into reasonable corners. The 35 mm diameter provides a smooth rolling action without the wheel catching or skipping, and the silicone surface grips the material just enough to apply pressure without dragging or bunching it up. The distinctive orange colour makes it easy to spot on a cluttered workbench or rooftop — a small but practical detail when you are working at height or in poor light.

In use, the 006785 is paired with a hot air gun in a simple two-handed technique: the gun heats the material in one hand, and the roller follows immediately behind in the other, pressing the softened surfaces together before they cool. This is the standard method for welding PVC banners, tarpaulins, pond liners, and roofing membranes. The roller's silicone surface leaves no marks or residue, which is important when working on visible surfaces or materials that will be inspected for quality. For heat-shrink applications — such as sealing cable splices or wrapping pipe insulation — the roller can be used to smooth out wrinkles and ensure the tubing conforms tightly to the substrate before it fully cools.

The 006785 is hand-powered with no batteries, motor, or electrical components — it is as simple and reliable as a tool gets. The handle is shaped for a comfortable grip and allows you to apply significant downward pressure without straining your wrist. The silicone roller head is a wear item — over years of heavy use it will eventually show surface wear — but replacement rollers are available from Steinel. The roller is backed by a 1-year manufacturer's warranty.

On Amazon.fr the Steinel 006785 holds a rating of 4.7 out of 5 stars from 3 customer reviews and ranks #511 in Hot Air Guns — though it is listed in that category as an accessory rather than a heat gun itself. At approximately 43.32 EUR, it is a premium-priced accessory — budget silicone rollers are available for a fraction of the cost. The Steinel premium buys you genuine heat-resistant silicone that will not melt or degrade with repeated hot contact, a well-balanced handle, and the assurance of a brand that has specialised in hot air tools for decades. For occasional DIY use, a budget roller will suffice. For professional work where a failed weld means a callback or a leak, the quality difference is worth the price.

The Steinel 006785 is ideal for professional roofers, plastic fabricators, banner makers, and serious DIYers who regularly weld thermoplastic materials with a hot air gun and need a reliable, heat-resistant pressure roller.