Gel-Pak Tack Level (Retention) Chart ☰ Quick Links × Quick Links E-Store Request Quote Request Sample Contact Technical Support Product Selection Wizard Calculate Number Of Devices/Carrier Gel-Pak Brochure Gel-Pak has refined its elastomer chemistry to provide a wide range of tack (retention) levels from an extremely low tack Gel or Vertec elastomer for holding small polished optics to a high tack Gel or Vertec elastomer for holding large ceramic substrates. Label: Retention Level: XT Description: Ultra Low Tack Gel Products: AD, BD, CD, VR, PF, DGL Label: Retention Level: XL Description: Low Tack Gel Products: VR, DGL Label: Retention Level: X0 Description: Low Tack Gel Products: AD. BD, CD, PF, WF, DGL Label: Retention Level: X4 Description: Medium Tack Gel Products: AD, BD, CD, VR, PF, WF, DGL Label: Retention Level: X5 Description: Medium Tack Gel Products: AD, BD, CD Label: Retention Level: X6 Description: High Tack Gel Products: AD, BD, CD, VR Label: Retention Level: X8 Description: High Tack Gel Products: AD, BD, CD, VR, PF, WF, DGL Label: Retention Level: FP64 Description: Low Tack Vertec Products: AD, BD, VR, PF, WF Label: Retention Level: FM71 Description: Medium Tack Vertec Products: AD, BD, VR, PF, WF Label: Retention Level: EH01 Description: Ultra Low Tack Vertec Products: AD, VR Label: Retention Level: EH02 Description: Low Tack ESD Vertec Products: AD, VR Label: Retention Level: EH06 Description: ESD Vertec Products: VR, PF, WF Label: Retention Level: EH07 Description: High Tack ESD Vertec Products: AD Label: Retention Level: FK79 Description: High Tack Vertec Products: AD, BD, VR, PF, WF Label Retention Level Description Products AD BD CD VR PF WF DGL XT Ultra Low Tack Gel XL Low Tack Gel X0 Low Tack Gel X4 Medium Tack Gel X5 Medium Tack Gel X6 High Tack Gel X8 High Tack Gel FP64 Low Tack Vertec FM71 Medium Tack Vertec EH01 Ultra Low Tack Vertec EH02 Low Tack ESD Vertec EH06 ESD Vertec EH07 High Tack ESD Vertec FK79 High Tack Vertec Visit our Product Selection Wizard to find the right Gel-Pak for your Application. Visit Now!