Flexsys

ANTIREVERSION CHEMICALS
Product Classification	Reversion Resistance		Hysterisis		Scorch Resistance	Cure Rate	Tear Resistance	Fatigue, Crack Growth Resistance	Wire Adhesion	Elastomer Preference
.	Extended Cure	High Temperature Cure	Heat Build-up	Blowout Resistance
Antireversion Agent:
Perkalink 900²	E	E	E	E	N	N	M/G	G	M/G	NR,SBR,BR, NBR,IIR,CIIR
Post-Vulcanization Stabilizer :
Duralink HTS³	G/E	G/E	G/E	G	M	M	G	E	E	NR,SBR, BRNBR

Use of dithiophosphate accelerator such as, Vocol ZBPD, and sulfur donor, such as Sulfasan DTDM, in efficient and semi-efficient vulcanization systems will also provide reversion resistant compounds.
Perkalink 900 reacts with diene/triene units during the reversion process to form new thermally stable C-C crosslinks as sulfur crosslinks are destroyed. The loading of Perkalink 900 should not exceed 0.75phr in typical conventional cure NR compounds in order to prevent an overcompensation of the loss of sulfur crosslinks.
Duralink HTS interacts with the curing system during the vulcanization reaction to form hybrid crosslinks.

Ratings: E = Excellent, G = Good, M = Moderate, P = Poor, L = Long, F = Fast, N = No or little effect

Letter ratings shown were determined and assigned by Flexsys and are based on its judgment and evaluation of the results of tests conducted by Flexsys and the comparative performance of these materials in those tests. For specific compounding related information please contact your local Flexsys Technical Service Representatives.