The Rapid Slim Kit is second to none when it comes to straight, narrow, and flat surfaces. It uses the infrared (IR) paint removal method to efficiently and safely remove old paint and varnish. The low heat eliminates toxic lead vapors. Scraping soft paint greatly reduces the lead paint dust released into the environment. The infrared rays effectively heat and loosen all the layers for clean scraping right down to the bare wood. The width of the heated surface using the Rapid Slim Kit is almost half that of the Speedheater Standard 1100 (2.75” vs. 4.8” ). So the Rapid Slim fits more easily into narrower, tighter spaces than the larger infrared heater.
The Rapid Slim (RS) works well on vertical siding, furniture, doors, cabinets, and large window sashes which don’t have smaller, divided glass panes. The Boomerang Scraper in the Kit thoroughly scrapes paint and varnish off both flat and curved surfaces. The RS quickly heats even rock-hard window glazing putty for smooth and precise removal with the Rolling Chisel and Putty Scraper in this Kit.
The Rapid Slim Kit includes a Support Bar which gives hands-free positioning of the infrared rays away from the window glass but facing the angled glazing putty. Both the low temperature and the directional infrared rays prevent the glass from breaking using the infrared method.
A convenient and safe storage container is part of this kit to hold your Rapid Slim infrared paint remover, scrapers, support bar and 3 tools. To double worker’s productivity on larger, vertical surfaces, one can purchase our other hands-free accessory, the pole-mounted Classic Arm.
*UL certified
Item Number: 3-9120-US
Frequently asked questions
How does the Speedheater Rapid Slim remove paint?
It uses the infrared (IR) paint removal method. The infrared rays heat and loosen all the layers of old paint and varnish so they scrape off clean right down to the bare wood. There is no sanding dust storm and no chemical stripper.
Is the Speedheater Rapid Slim safe for lead paint?
The low heat avoids the toxic lead vapor that a hotter gun gives off, and scraping the softened paint greatly reduces the lead paint dust released into the environment. It is also UL certified.
What is the difference between the Rapid Slim and the Standard 1100?
The Rapid Slim heats a 2.75 inch strip, almost half the width of the Standard 1100 at 4.8 inches. That narrower heated area fits more easily into tight spaces, which makes it suited to straight, narrow, and flat surfaces.
What is included in the Rapid Slim kit?
The kit includes the heater, the Boomerang Scraper, a rolling chisel, a putty scraper, a support bar, and a case. The support bar gives hands-free positioning of the infrared rays away from the glass when working on window glazing putty.
What surfaces does the Rapid Slim work best on?
It works well on vertical siding, furniture, doors, cabinets, and large window sashes that do not have smaller divided glass panes. It is built for straight, narrow, and flat surfaces, and it can heat even rock-hard glazing putty for removal.
Stripping old paint? These guides from The Craftsman Blog show you how to do it safely and efficiently, lead paint and all.
Related tutorials
From The Craftsman Blog
The Ultimate Guide to Infrared Paint Removal
Heat gun or infrared? Scott breaks down when each makes sense, especially for lead paint where temperature matters for safety. Infrared wins for low-temp, low-fume removal. Good reading before you run a Rapid Slim.



