Loading... Please wait...Matrix Flex Additive MX-841 is formulated as a universal elastomeric additive for use in 2-component coatings where flexibility is desired. MX-841 may be used in the below Matrix products and as a replacement flex additive in specific paint systems (PPG® DX-814). MX-841, when used as recommended, will create a refinish coating that will withstand the abuse of minor impacts and flexing during and after installation of a flexible part. NOTE: DO NOT USE MX-841 IN THE FOLLOWING PRODUCTS: MP4-2K, MP-EPOXIES, MP-350, MP-120 SERIES, MPB OR MSB BASECOAT PRODUCTS.