HX-Stiffening Agent
A one-part, low-viscosity pourable liquid that, when mixed into a casting or mask making latex, increases the stiffness and reduces the flexibility of the cured latex. Varying levels of stiffness can be achieved in proportion to the amount added. Compatible with HX-200, HX-407 and HX-807.
- Increases the stiffness of cured latex castings
- Adjust flexibility by varying the amount added
- Compatible with HX-200, HX-407 and HX-807
- Ideal for hollow castings, masks and theatrical props
- Designed for gypsum mold casting applications
Product Overview
HX-Stiffening Agent is a liquid additive that increases the stiffness and reduces the flexibility of cured latex castings. By adjusting the amount added, users can fine-tune the final rigidity of a casting to suit a specific application.
Compatible with HX-200, HX-407 and HX-807 latex systems, HX-Stiffening Agent is commonly used for masks, puppetry, theatrical scenery and hollow cast objects produced in gypsum molds.
Application Summary
- Measure latex and stiffening agent by weight.
- Adjust the ratio according to the desired flexibility.
- Mix thoroughly before casting.
- Cast and cure using the recommended procedure for the base latex.
- Test small batches to confirm the desired stiffness.
For complete instructions and technical details, refer to the Technical Bulletin.
Mixing Ratios
| Latex (HX-200/407/807) | HX-Stiffening Agent | Resulting Flexibility |
|---|---|---|
| 1 part by weight | 0.5 part by weight | Very Flexible |
| 1 part by weight | 1.0 part by weight | Flexible |
| 1 part by weight | 1.5 parts by weight | Medium Flexibility |
| 1 part by weight | 2.5 parts by weight | Very Rigid |
Do not use if you have latex allergies. Store and use at room temperature (73°F/23°C); do not allow to freeze. Always consult the current Technical and Safety Data Sheets before use.
Documents
📄 Technical Bulletin ⚠ Safety Data Sheet (SDS)Documents hosted by Smooth-On, the manufacturer of Holden's Latex.
Related Products
HX-407 Latex
HX-407 is a pre-vulcanized, high-viscosity pourable casting latex that forms a thick, durable skin when poured into a gypsum mold and allowed to 'dwell' before spilling out to build layers. Primarily for mask making in a 2-piece gypsum mold.
HX-807 Latex
HX-807 is a pre-vulcanized, high-viscosity brushable latex for coating a variety of surfaces. Perfect for making latex masks, skins and props, with thickness control for latex castings.
HX-200 Latex
HX-200 is a pre-vulcanized, low-viscosity coating/dipping latex, sometimes called a 'balloon' latex. Widely used for dipping and coating applications and good for making thin, stretchy skins.
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