CURING AGENT TP68

Discription Matt Hardener TP68 (Same as Degussa VESTAGON B68 Matt Hardener)is Epoxy Resin Hardener /Epoxy Resin Curing Agent. It is used as hardener for epoxy resin , hybrid powder coatings to achieve coatings with matt surface having excellent mechanic quality and wonderful appearance. CharacteristicsAppearance:White or light yellowish powder Melting range:210-230C Purity:≥99%ApplicationMatt curing agent TP68 for epoxy resin and epoxy polyester hybrid powder coatings is used to achieve coatings with matt surface having excellent mechanic quality and wonderful reappearance. Specific instructions Recommending formula gloss 60C 5-6 20 40 70 epoxy(663U or E-12) 54.5 39.7 35.7 31.8 Polyester(acid valve:25-35 mgKOH/g) ---- 14.8 20.8 26.7 TP68 5.0 5.0 3.0 1.0 Filling material (BaSo4,CaCo3) 40 40 40 40 Levelling agent 0.5 0.5 0.5 0.5 Carbon black 0.5-1 0.5-1 0.5-1 0.5-1 Recommending curing condition 180C 20-25 min 190C 10-12 min 200C 8-10 min NoticeThe TP68 's compatibility with resin isn't well for its high melting point, to avoid this default it's necessary to distrbute them or to make the curing temperature at a higher level. In the case of epoxy polyester hybrid powder coatings, the polyester used should be low ccidity.Before acid valve the ideal gloss and multiple characteristics tests are needed. StorageThe storage period could last a rather long time when it is kept inside the sealed container.Do seal the container again after taking some from it.