--- title: Ring Forms and Castable Molds for Mounting url: https://www.buehler.com/products/mounting/mounting-consumables/ring-forms-and-castable-molds-for-mounting/ date: 2024-03-04T15:53:01+00:00 modified: 2025-01-30T21:54:43+00:00 lang: en_US --- # Ring Forms and Castable Molds for Mounting # Ring Forms and Castable Molds for Mounting ![Ring Forms and Castable Mounting Molds](https://www.buehler.com/wp-content/uploads/2023/12/Castable-Molds.png) *Ring Forms and Castable Mounting Molds for Mounting* ![208151100 Ring Forms Plastic 1in](https://www.buehler.com/wp-content/uploads/2021/10/20-8151-100_ring-forms-plastic-1odx34.jpg) *Plastic Ring Forms* ![208282 Disposable Cold Mount Cups 1.5in](https://www.buehler.com/wp-content/uploads/2021/10/20-8282_disposable-cold-mt-cups1-12.jpg) *Disposable Mounting Cups* ![209184 SamplKup 2in 12pcs](https://www.buehler.com/wp-content/uploads/2021/10/20-9184_samplkup-2-12-pcs.jpg) *SamplKup* ## Make your Mounting Process Easier and More Efficient ### Ring Forms and Castable Molds Buehler offers a variety of Ring forms and castable molds for mounting, and can be used with castable systems to help you optimize your mounting process. Available in round size ranges 1-2in and 25-50mm, as well as larger rectangular molds, we have the size you need for your process. ##### High Quality Mounts SamplKups and EPDM molds create high quality mounts with easy removal, all designed to help simplify, improve, and customize your mounting processes. [Shop Now](https://shop.buehler.com/castable-mounting-molds) ### Disposable Mounting Cups Best for mounting low exotherm castable systems like [EpoxyCure® 2](https://www.buehler.com/products/mounting/mounting-consumables/epoxy-mounting-systems/) and [EpoThin® 2](https://www.buehler.com/products/mounting/mounting-consumables/epoxy-mounting-systems/). #### SamplKup® ![209184 SamplKup 2in 12pcs](https://www.buehler.com/wp-content/uploads/2021/10/20-9184_samplkup-2-12-pcs.jpg) Reusable with best dimensional stability and suitable for use with all Buehler castable systems. [Shop SamplKup](https://shop.buehler.com/castable-mounting-molds#/specFilters=15m!#-!270) #### Plastic Ring Forms ![208151100 Ring Forms Plastic 1in](https://www.buehler.com/wp-content/uploads/2021/10/20-8151-100_ring-forms-plastic-1odx34.jpg) Provides a stronger fit of the castable mount to the sample holder for polishing in central force mode. [Shop Ring Forms](https://shop.buehler.com/castable-mounting-molds#/specFilters=15m!#-!266) #### EPDM Round & Rectangular Molds ![207186 EPDM Rectangle Mounting Cups 70x40x22mm](https://www.buehler.com/wp-content/uploads/2021/10/20-7186_epdm-rectangle-mounting-cups-70x40x22-mm.jpg) Suitable for use with all Buehler castable systems. Best choice for large, rectangular mounts and for curing mounts in ovens. [Shop EPDM & Rectangular Molds](https://shop.buehler.com/castable-mounting-molds#/specFilters=15m!#-!258) ##### Ordering | Ring Forms & Castable Molds | | | --- | --- | | Disposable Mounting Cups | | | Best for mounting low exotherm castable systems like EpoxiCure® 2 and EpoThin® 2. Also great for specimen storage (Qty 50) | | | Part Number | Size | | [20-8280](https://shop.buehler.com/disposable-cold-mt-cups-1) | 1in x 1in H | | [20-8281](https://shop.buehler.com/disposable-cold-mt-cups1-14) | 1.25in x 1in H | | [20-8282](https://shop.buehler.com/disposable-cold-mt-cups1-12) | 1.5in x 1in H | | Plastic Ring Forms | | | Provides a stronger fit of the castable mount to the sample holder for polishing in central force mode. (Qty 100) \*Not recommended for acrylics | | | Part Number | Size | | [20-8151-100](https://shop.buehler.com/ring-forms-plastic-1odx34) | 1in | | [20-8152-100](https://shop.buehler.com/ring-forms-plastic-1-14-in) | 1.25in | | [20-8153-100](https://shop.buehler.com/ring-forms-plastic-1-12-in) | 1.5in | | [20-8154-100](https://shop.buehler.com/ring-forms-plastic-2-inch-100) | 2in | | SamplKup® | | | Reusable with best dimensional stability and suitable for use with all Buehler castable systems. (Qty 12) \*not for use in ovens. | | | Part Number | Size | | [20-9178](https://shop.buehler.com/samplkup-1-12-pcs) | 1in x 1in H | | [20-8180](https://shop.buehler.com/samplkup-125-12-pcs) | 1.25in x 1in H | | [20-9181](https://shop.buehler.com/samplkup-15-12-pcs) | 1.5in x 1in H | | [20-9184](https://shop.buehler.com/samplkup-2-12-pcs) | 2in x 1in H | | [20-9177](https://shop.buehler.com/samplkup-25mm-12-pcs) | 25mm x 1in H | | [20-9179](https://shop.buehler.com/samplkup-30mm-12-pcs) | 30mm x 1in H | | [20-9182](https://shop.buehler.com/samplkup-40mm-12-pcs) | 40mm x 1in H | | [20-9183](https://shop.buehler.com/samplkup-50mm-12-pcs) | 50mm x 1in H | | EPDM Round & Rectangular Molds | | | Suitable for use with all Buehler castable systems. Best choice for large, rectangular mounts and for curing mounts in ovens. | | | Part Number | Size | | EPDM Round Molds (Qty 5) | | | [20-8181](https://shop.buehler.com/rubber-mounting-cups-1-in) | 1in dia x 5/8in H | | [20-8182](https://shop.buehler.com/rubber-mounting-cups-1-14-in) | 1.25in dia x 5/8in H | | [20-8183](https://shop.buehler.com/rubber-mounting-cups-1-12-in) | 1.5in dia x 5/8in H | | [20-8184](https://shop.buehler.com/rubber-mounting-cups-2-in) | 2in dia x 1in H | | [20-7183](https://shop.buehler.com/epdm-mounting-cups-40mm-5pk) | 40mm dia x 31mm H | | [20-7184](https://shop.buehler.com/epdm-mounting-cups-50mm-5pk) | 50mm dia x 31mm H | | EPDM Rectangular Molds (Qty 1) | | | [20-7185](https://shop.buehler.com/epdm-rectangle-mounting-cups-55x30x22-mm) | 2.2 x 1.2 x 0.9in \[55 x 30 x 22mm\] | | [20-6185](https://shop.buehler.com/epdm-mntg-cup-25-x-14-x-18) | 2.5 x 1.4 x 1.8in \[63 x 25 x 46mm\] | | [20-7186](https://shop.buehler.com/epdm-rectangle-mounting-cups-70x40x22-mm) | 2.8 x 1.6 x 0.9in \[70 x 40 x 22mm\] | | [20-6186](https://shop.buehler.com/epdm-mounting-cup-6-x-4-x-2) | 6 x 4 x 2in \[150 x 100 x 50mm\] | | [20-6187](https://shop.buehler.com/epdm-mounting-cup-6x3x1) | 6 x 3 x 1in \[150 x 76 x 25mm\] | ##### Related Consumables [![Epoxy Mounting Systems](https://www.buehler.com/wp-content/uploads/2023/12/Epoxy-Mounting-Systems.png)](https://www.buehler.com/products/mounting/mounting-consumables/epoxy-mounting-systems/) [Epoxy Mounting Systems](https://www.buehler.com/products/mounting/mounting-consumables/epoxy-mounting-systems/) [![Acrylic Mounting Systems](https://www.buehler.com/wp-content/uploads/2023/12/Acrylic-Mounting-System.png)](https://www.buehler.com/products/mounting/mounting-consumables/acrylic-mounting-systems/) [Acrylic Mounting Systems](https://www.buehler.com/products/mounting/mounting-consumables/acrylic-mounting-systems/) [![Release Agents and Powders](https://www.buehler.com/wp-content/uploads/2023/12/Release-Agent.png)](https://www.buehler.com/products/mounting/mounting-consumables/mount-and-mold-release-agents/) [Mount and Mold Release Agents and Powders](https://www.buehler.com/products/mounting/mounting-consumables/mount-and-mold-release-agents/) [![Support Clips, Additives, and Mixing Cups](https://www.buehler.com/wp-content/uploads/2023/12/Cups-and-Additives.png)](https://www.buehler.com/products/mounting/mounting-consumables/support-clips-additives-and-mixing-cups-for-mounting/) [Support Clips and Additives](https://www.buehler.com/products/mounting/mounting-consumables/support-clips-additives-and-mixing-cups-for-mounting/) ##### Product Literature [![Epoxy Mounting Guide](https://www.buehler.com/wp-content/uploads/2023/02/Epoxy-Mounting-Guide.jpg)](https://www.buehler.com/assets/Brochures/English/Mounting/Epoxy_Mounting_Guide_Web.pdf) [Epoxy Mounting Guide](https://www.buehler.com/assets/Brochures/English/Mounting/Epoxy_Mounting_Guide_Web.pdf) [![Acrylic Mounting Guide](https://www.buehler.com/wp-content/uploads/2023/02/Acrylic-Mounting-Guide.jpg)](https://www.buehler.com/assets/Brochures/English/Mounting/Acrylic_Mounting_Guide_Web.pdf) [Acrylic Mounting Guide](https://www.buehler.com/assets/Brochures/English/Mounting/Acrylic_Mounting_Guide_Web.pdf) [![Buehler Product Catalog](https://www.buehler.com/wp-content/uploads/2023/10/Buehler-Product-Catalog_default_600x782.jpg)](https://en.calameo.com/buehler/read/00639329103cfc405df2c) [Buehler Product Catalog](https://en.calameo.com/buehler/read/00639329103cfc405df2c) ###### Frequently Asked Questions #### Are SamplKups oven safe? SamplKups are not for use in ovens. We recommend using EPDM round & rectangular molds for curing mounts in ovens. #### Are Plastic Ring Forms appropriate for any castable mounts? Plastic Ring Forms are designed for castable mounts, but they are not recommended for acrylics systems. ![Dr. Mike Keeble](https://www.buehler.com/wp-content/uploads/2023/12/Dr-Mike-Keeble.jpg) Find Your Solutions ###### Full Lab Metallography Solutions Looking for more information from us? Browse through our Solutions section to view technical articles, find recommended processing methods, look at industry solutions, and more. [Solutions by Industry](https://www.buehler.com/solutions/buehler-solutions/solutions-by-industry/) [Solutions by Material](https://www.buehler.com/solutions/buehler-solutions/solutions-by-material/) Need Additional Help? Do you want to improve your process? 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