RC-721
MBS core-shell; PC / modifier = 95 / 5.
648 J/m at -30°C
APPLICATION GUIDE
Low-Temperature PC Impact Modifier & Toughener
Compare the documented low-temperature PC evaluation context for RC-721 MBS core-shell and RC-756 silicone-rubber-core impact modifiers.
Products for Evaluation
Short answer
RC-721 and RC-756 both have controlled -30°C PC impact data. Their test formulations differ, so grade selection should consider resin system, target impact, temperature, flow, heat resistance, appearance, processing and cost target.
Two separately scoped evaluation paths
RC-756
Silicone-rubber core with low-temperature and hydrolysis-resistance positioning; PC / MBS / PETS / 1010 = 95 / 5 / 0.5 / 0.5.
685 J/m at -30°C
The formulations differ. No overall winner is declared.
Application test results are formulation-specific and should not be interpreted as guaranteed product specifications. Final grade selection and dosage should be validated in the customer’s own formulation and processing conditions.
Technical Documents and Comparable Evidence
Estimated Price / Price on Request
RC-721
Estimated Price Range: USD 2,750–3,300 / MT
Last Reviewed: November 1, 2026
View price contextRC-756
Price on Request
View price contextReference price range only. Actual price depends on grade, quantity, destination and current market conditions. Please contact us for today's confirmed CIF quotation.
Engineering MBS Commercial Information
20 kg/bag · PE inner liner + PP woven outer bag · MOQ 1 MT · 5 kg free sample · customer pays sample freight · lead time 7–10 days after order before shipment/loading · primary export port Qingdao, China · worldwide shipping.
20GP = 14 MT / 700 bags · 40GP = 24 MT / 1,200 bags. Customer-facing terms are FOB and CIF. Estimated CIF is for reference only and requires manual confirmation.
Plan an Evaluation
For multi-product paths, select the intended grade in the RFQ form before submission.