Isamu Bumper Putty 400g Special Polyester Putty is for polyester for bumpers that is easy to sharpen. It is an intermediate putty that has excellent adhesionand flexibility even without a primer.Normal poly putty has poor adhesion to urethane and PP bumpers. Also, because of the hard finish, cracks may occur in the course of running.After all, bumper putty for exclusive use of bumper is recommended.Because the color of the putty is dark, intermediate putty paste sets the yellow. It is because it is easy to check the mixing condition.
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