 Frequently our clients encounter painted surfaces which require stripping. These circumstances can occur as a result of paint failure or when painting older exteriors on which multiple coats have been built up over the years. There are at present only three means by which paint may be effectively removed: heat, chemical stripping or abrasion. We are reluctant to recommend heat removal because of the danger of fire, and the results of chemical removal are unpredictable due to the neutralization process which is required.
We recommend the 3M/Makita Paint Removal System for all interior or exterior surfaces. The heart of this system is the Scotch-Brite ™ Coating Removal Disc (CRD) which is a non-woven abrasive product containing an extra coarse silicon carbide mineral. The rugged open web is virtually non-loading to make surface preparation faster and easier during heavy coating removal operations (less expensive than sandpaper). The CRD removes paint from wooden surfaces without the scoring or gouging which results from the use of other abrasive systems. In most cases, wooden surfaces will show the same degree of finish which would be obtained by sanding with a 100 grit paper. Please note that the CRD comes in two levels of roughness: coarse for exterior use and fine for interior use.
The CRD will serve as a replacement for wire brushes, scrapers, and other abrasives for use on a variety of substrates such as wood, aluminum, cement, brick, and ferrous metals. Users find that light pressure gives the best results, particularly on wood, where it dramatically increases the life of the CRD. Under normal use, a coatings removal disc (CRD) will last for two to four hours. This will vary according to the volume of paint to be removed and the pressure applied.
The CRD is held in place by a disc holder with hook and loop design for quick changing. The CRD is powered by the Makita GV5000 disc sander. This lightweight machine (2.5 lbs.) with its two-handle design is user friendly and produces the operating speeds recommended by 3M for maximum efficiency.
We recommend that the 3M/Makita System be operated with protective goggles and a breathing filter. |