Posted on January 5, 2021In Rubber, Silicone, Technical Bulletin REQUEST TECHNICAL BULLETIN RUBBER TYPE: Silicone FORMULATIONS: Adding N990UP and N991UP to silicone compounds THERMAX® EFFECTSLarge particle size provides a low tinting strength and a strong blue undertone DATA COLLECTEDMasstone colorTint color Color Colour N990UP N991UP Pigment Rubber Silicone