Skip to Main Menu Ceetak Sealing Solutions Heat Sealing Solutions Search Call Open Menu Polyacrylate & Ethylene Acrylate Rubber Polyacrylate (ACM) & Ethylene Acrylate (AEM) consist of polymerised ester and a curing monomer and are M-Group elastomers. Home / Our Products / Engineered Materials / Polyacrylate & Ethylene Acrylate Rubber What is ACM/AEM? ACM (polyacrylate rubber) consists of a polymerised ester and a curing monomer and being an M-Group elastomer has a saturated backbone coupled with polar side groups in the molecular structure. This results in excellent resistance to heat, ozone and hot oils and makes it significantly better than NBR materials. However, resistance to water, acids, alkalis and glycols is poor, whilst low temperature flexibility and physical strength (including resistance to compression set) is only fair. AEM (ethylene acrylate rubber) is a similar material with slightly improved high and low temperature capability, but poorer overall chemical resistance and at an increased cost. Why use ACM/AEM? The improved hot oil resistance capability (compared to an NBR material) will often justify the slightly higher cost of an ACM seal. In applications where additives (such as sulfur) are used in the lubricating oils, ACM can be a cost effective solution compared to more expensive M-Group rivals (such as FKM). It can also be preferred over silicone based materials for some hot air applications. If the application is exposed to ozone and the atmosphere, the improved resistance to ageing that ACM offers can give substantial lifetime advantages. When to use ACM/AEM ACM is an ideal choice in the automotive industry for “under bonnet” applications, where the high temperature and hot oil resistance is significantly better than NBR options for a modest increase in cost, and well below the substantial cost increase associated with FKM alternatives. Use within the engine and gearbox lubrication systems is common, whilst water and glycol based fluid resistance is poor and exposure to these fluids should be avoided. General temperature capability is -20°C (-4°F) to +177°C (+350°F) but as with most elastomers special formulations can extend this, and lower temperatures of -35°C (-31°F) can be achieved. Standard ACM/AEM materials This is a small selection of our general purpose ACM/AEM materials. Many more compounds are available and can be chosen to suit the specifics of the application. The tensile strength and elongation are for specification purposes. Typical achieved values can be significantly higher. Temperature range is general recommendation for static application in air. Temperature ratings are subject to full application review. Ceetak code Material group Hardness (Shore A) Colour Tensile Strength MPa min Elongation at Break % min Recommended operating temperature range Callout ASTM D2000 A55C819 ACM 55 Black 9 200 -20°C to +150°C M2 DH 609 A26 B36 EO16 EO36 C12 Z1 A70CD66 ACM 70 Black 6 100 -20°C to +150°C M5 DF 706 A26 B16 EO16 EO36 A80CD40 ACM 80 Black 8 125 -20°C to +150°C M2 DH 808 A26 B16 EO16 EO36 Z1 AE70CD10 AEM 70 Black 10 200 -30°C to +150°C M4 EE 710 A47 B46 B37 EA14 EO16 EO36 G21 AE75CD37 AEM 75 Black 10 150 -30°C to +150°C ----------------------------------------------------- VAMCC52 AEM 60 Black 12 300 -40°C to +150°C M3 EE 612 A26 B37 EO16 F17 Want to Know More? To discuss our materials further and get support with material selection for your application, please contact one of our application engineers. Ask an Engineer Our Products Previous Next We have a range of key products available in endless size and material combinations depending on your individual application requirements. Previous Diaphragms Engineered Materials Our Markets Previous Slide Next Slide Water & Utilities Semiconductor Aerospace Automotive Application Focus: Diaphragms for precise control in critical applications Read more 1 2 3 4 5 6 7 Previous Slide Next Slide In association with Contact Us Your Name * Your Company Your Email * Your Phone Number Nature of the Enquiry Please select... General Enquiry Information Ask an Engineer Your Message * I consent to sharing my information with Ceetak Ltd. By submitting this form, you are agreeing our Privacy Policy For more information see our Privacy Policy Submit protected by reCAPTCHA Ceetak Ltd +44 (0)1234 832200 enquiries@ceetak.com Ceetak Ltd Fraser Road Priory Business Park Bedford MK44 3WH Ceetak Ltd - Aberdeen +44 (0)1224 249690 enquiries@ceetak.com Ceetak Ltd - Aberdeen Block 1, Unit 13 Souterhead Rd Altens Industrial Estate Aberdeen AB12 3LF Ceetak Ltd - Heat Sealing Division +44 (0)1234 832200 hsenquiries@ceetak.com Ceetak Ltd - Heat Sealing Division 1 Napier Road Elms Farm Industrial Estate Bedford MK41 0QR Technical Hub Ask an Engineer Sitemap Privacy Cookies Data Protection Terms & Conditions of Sale Terms & Conditions of Purchase Disclaimer Job Applicant Privacy Policy © 2021 Ceetak Ltd - Registered no: 2251723 Close Menu