Crystalbond™ 509 Provides excellent adhesion and minimizes clogging of diamond tools compared to waxes. They are transparent in thin cross-sections. Soluble in acetone, odorless, non-flammable, biodegradable and may be rinsed in water. Crystalbond™ 555 & 555-HMP A low melting point adhesive for moderate stress machining processes. It is transparent in thin cross-sections and is soluble in hot water. 555 has a Flow Point of 120ºF (54ºC); 555-HMP is 150ºF (66ºC); Crystalbond™ 590 A high strength, resilient adhesive system, ideal for doing miniature and tall parts. It is soluble in methanol or IPA.