Solid, heat-curing silicone rubber compound for manufacturing everyday silicone components by compression molding. Yakows YK general-purpose material options cover 30–90 Shore A hardness for seals, gaskets, pads, buttons, keypads and custom molded parts.
Choose a compound based on part hardness, mold geometry, cure system, mechanical requirements and production conditions. We support grade selection, sample trials and bulk material supply for silicone product manufacturers.
General-purpose HTV silicone rubber is a high-consistency, solid silicone compound designed to be shaped in a heated mold and vulcanized into an elastic finished product. It is a common material choice where manufacturers need a balance of flexibility, mechanical performance and workable compression molding behavior.
For O-rings, gaskets and other molded components, a suitable compound must match the required compression response, finished-part hardness, geometry, surface finish and operating conditions. These requirements should be evaluated together rather than selecting hardness alone.
Yakows offers general molding silicone compounds with choices in reinforcing systems, strength and curing chemistry to support different molded-part requirements.
Explore four material options for silicone rubber compression molding, from versatile general-purpose compounds to reinforced and platinum-catalyzed formulations.
Standard YK option for common molded rubber products where the priority is a useful balance of processing behavior, elasticity and general mechanical performance.
Formulation direction with a reinforcing filler system. Evaluate where filler-related reinforcement and compound handling matter to the final design.
Candidate for molded parts needing mechanical performance beyond a basic compound, particularly where geometry, stretch or mold release can stress the rubber.
Cure-system option for applications requiring platinum-catalyzed material, subject to the grade's actual processing and product-approval documentation.
YK molding silicone is listed with 30A–90A hardness options. A lower Shore A value normally means a softer and more deformable rubber; a higher value indicates a firmer material. Neither hardness nor firmness alone determines overall quality.
Target hardness should be established together with compression force, sealing design, flexibility, assembly fit, thickness and the required mechanical test values.
Screen these options when the design benefits from easy deformation, a softer touch or low insertion force. Verify tear strength and compression behavior.
A useful evaluation range for many industrial gaskets, protective pads and molded rubber parts, subject to the part's actual sealing and mechanical needs.
Consider where dimensional support or reduced local deformation is important. Confirm that higher hardness will not compromise installation or sealing.
Review the YK molding compound range and the material properties used to select a grade for production.
| Technical Item | YK Molding Compound Options | Selection Considerations |
|---|---|---|
| Materialform | Solid HTV / HCR silicone compound | Preforming and mold-loading method |
| Härte | 30–90 Shore A range | Target hardness and finished-part flexibility |
| Primary Processing | Heat-curing compression molding | Mold temperature, pressure, cure time and post-cure |
| Formulation Direction | General purpose, fumed silica, high strength and platinum-catalyzed options | Cure system and mechanical-performance targets |
| Zugfestigkeit | Grade-dependent; see TDS | Tensile strength target and test method |
| Tear Strength & Elongation | Grade-dependent; see TDS | Tear strength, elongation and test methods |
| Density & Compression Set | Grade-dependent; see TDS | Density, compression set and operating conditions |
| Color | Color options by formulation | Color matching and finished-part appearance |
| Compliance | Documentation by selected formulation | Application-specific test reports and compliance needs |
| Packaging | 20 kg / carton + pallet | Order quantity, storage and delivery |
From preforming to finished-part inspection, consistent compression molding depends on material handling, mold design, curing control and repeatable production conditions.
Prepare the solid compound into suitable charges or preforms so that the material fills the cavity consistently and supports stable cycle times.
Match charge weight, mold temperature, pressure and cure time to the part geometry and the selected YK hardness direction.
Check release behavior, flash removal, part appearance and whether post-cure or secondary finishing is needed for the molded part.
Verify hardness, dimensions, appearance and finished-part function so that sample trials and production batches remain aligned.
General-purpose YK compounds support the manufacture of O-rings, gaskets, buttons, pads, plugs, caps and custom industrial silicone parts through heat-curing compression molding.
Always confirm the real mold temperature, cure cycle, release behavior, flash control and finished-part performance before moving from trial material to routine supply.
YK general-purpose HTV compounds can be used to produce a wide variety of compression-molded silicone parts, including seals, gaskets, keypads, protective covers and custom OEM components.
General molded sealing parts for equipment and assemblies where flexibility, rebound and dimensional consistency are required.
Suited to molded flat components and protective pads used in equipment, housings and assembly interfaces.
Evaluated for molded actuation components where touch feel, elasticity and shape retention matter to the finished product.
Compression-molded protective components used to cover, insulate or shield connectors and other small assemblies.
Molded parts for cable routing, cushioning or interface protection, chosen according to assembly fit and service requirements.
For made-to-drawing projects where the compound must work with the customer’s mold structure, curing process and production target.
If your molded silicone part is different from the examples above, send a drawing, photo or sample for review.
Discuss Your Molded Part →A lower-cost or higher-hardness compound is not automatically the better choice. Finished-part performance and production yield depend on multiple variables working together.
For material substitution or a new molded product, compare candidate compounds against an agreed qualification plan and real molding trials. It is especially important to confirm requirements for continuous compression, tear-prone geometries, appearance-sensitive parts and regulated end uses.
Material handling, compounding and quality checks all influence molding consistency from trial batches through bulk supply. Yakows supports application-focused material review, sampling and production coordination for HTV silicone rubber customers.
Yakows supplies general-purpose HTV silicone rubber for sampling and bulk production, with 20 kg cartons and palletized shipments. Discuss your hardness, color, molding process and order volume for material selection.
Application, hardness, drawing or sample, target performance, color and expected quantity.
Match the mold process, cure system and qualification requirements against suitable YK options.
Confirm technical data and evaluate the material under the actual molding conditions.
Finalize material approval, packaging, order quantity, commercial terms and shipping schedule.
It is commonly evaluated for compression-molded components such as O-rings, gaskets, sealing pads, buttons, keypads and general industrial silicone parts. The final grade should match the part's hardness, mechanical performance, curing and service requirements.
YK general-purpose molding compounds are available across the 30–90 Shore A range. Share your target hardness and part requirements to select a suitable formulation.
Yes. Yes. The solid HTV / HCR compound is designed for heat-curing in compression molds. Material preparation, cure time and temperature can be adjusted according to the selected formulation and part geometry.
General-purpose grades are designed for versatile molded components. High-tear grades emphasize tear resistance, while flame-retardant grades target specific flammability requirements.
Request the TDS, SDS and applicable grade-specific test documents for your material selection and intended application.
Share the molded component, drawing or photo, required Shore A hardness, target mechanical performance, color, production process, compliance requirements, trial quantity and expected annual demand.
Tell us what you are molding, the hardness and performance you need, and the manufacturing equipment you use. We can discuss a suitable YK material direction and the next steps for TDS, sampling and quotation.
E-Mail: info@yakows.com
