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Maintenance of acrylic resin  
Although acrylic resin has higher light transmittance when compared to glasses and is thermoplastic resin with strong impact strength, its surface can be easily scratched for its softness, similarly to other plastics, when compared to glasses and also has a defect to be sensitive to effects by organic solvents. Following cautions are advised for handling:
1)Cautions against scratches and breakages
Since acrylic resin is one of plastics with better surface hardness, comparable hardness to aluminum, particular attention is necessary against scratches in handling. If some sharp edges of metal hit or scratch it, traces and optical distortion may remain even after repairs.
2)Cautions on solvents
Acrylic resin may be eroded its surface by solvents, which may result in crazing (microcracking on surface). In particular, toluene and aromatic hydrocarbons solvents which contain many of various quick-drying thinners easily cause crazing, and may generate big cracks. Since those solvents are contained in most of paints, coating agents, adhesives and other various types of primers, special attention is necessary so that solvents do not directly touch acrylic resin. Vapor from those solvents may also cause crazing if acrylic resin is exposed to it for long time.
3)Cautions against heats
Since acrylic resin has chemical nature to become deformed when heated up to more than 100℃, it should not be placed in environment where temperature goes up to more than 80℃. Attention should be paid against fly shuttle by welding, burning cigarette ends and lightings during constructions, and in particular, against spotlights during photo or video shootings.
4)Cautions on cleaning
When dirt, dust or oil film is adhered to surface of acrylic resin, it should be cleaned with soft cloths, flannel or sponges to be lightly wiped out, using clean water. There may be some hard substances contained in dirt and dust, it is recommendable to brush off surface before wiping. As for persistent stain like oil film, it is better to wipe out using lukewarm water containing mild detergents. Please check whether or not solvents are contained in mild detergents, as those detergents sometimes contain solvents as their ingredients. Solvents like toluene should be strictly avoided against persistent stains such as glue fixed by adhesive tapes, as this may cause cracking. Rubbing with something like spatulas should be also avoided, as this may cause scratches. Remains of glue can be usually removed by rubbing with cloths soaked in lukewarm water, but when they are firmly fixed, they can be lightly wiped out from surface with plastic cleaners applied to soft cloths.
アクリル樹脂のクリーニング方法
Acrylic resin is easily cleaned by wiping out with soft cloths, after "Poly Care S", antistatic cleaner for plastics, is sprayed on its surface.
1)Poly Care S
Poly Care S is a spray-on cleaner which has significant effects for cleaning, polishing and preventing electrostatic charge of plastic products. It can be applied to acrylic resin, ABS resin, styrene resin, polyvinyl chloride resin, polypropylene and other resins.
2)Directions for using Poly Care S
1) Use after shaking well
2) Turn the arrow mark on push button toward applying surface, and spray evenly 15~30cm above surface.
3) Leave it for about 1 minute after spraying, and lightly wipe out foams with soft cloths.
4) Small articles and sophisticated parts should be wiped with cloths soaked with Poly Care S.
5) Area of about 50u can be sprayed with one can.
3)Handling of Poly Care S
Although Poly Care S does not contain any hazardous substances such as alcohol and thinner, please note following points, as LPG is used as propellant:
1) Do not spray toward flame.
2) Do not use heavily indoors where there is fire.
3) Do not store in places where temperature is higher than 40℃.
4) Do not throw away empty cans into fire.
4)Form (package) of Poly Care S
Container Spray can with 220cc content
Weight Approx. 275g (including container)
Carton pack 20 cans
Inner pressure 0.3~0.4 MPa (Initial pressure at 25℃)
5)Poly Care L (Sister product)
Poly Care S has a sister product named Poly Care L, which has exactly the same effects as Poly Care S for cleaning and preventing electrostatic charge. Both products may be applied depending on usages.
Content 15kg/can (Net)
Package 5-gallon can
Applying area 1 can for the area of 4,500~5,000u, as cleaning and polishing can be made with application of about 3~5g per 1u.
Usage Wipe out with soft and dry cloths for finishing, after thinly spreading Poly Care L with soft cloths on surface of plastics, or after spraying toward surface.
 

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