TT-RP-126: A Light-Color Accelerator for Clear Resin Casting
TT-RP-126 is a blue-violet transparent liquid accelerator formulated for curing unsaturated polyester resin in clear casting applications. Buyers producing poly buttons and transparent cast crafts source this accelerator because it cures with a light color and a slight blue tint, helping finished pieces keep bright, consistent hues rather than the yellowing sometimes seen with other accelerator chemistries.
Product Application
This promoter is specially for making poly button and other clear casting handicraft with excellent effect. In production, it is typically used in large-caliber centrifugal molding processes for buttons, where a light-color, high-clarity cure is essential to the finished part’s appearance.
Recommended Formulation and Curing Conditions
A typical centrifugal molding formulation for buttons combines 100 parts by weight of unsaturated polyester resin with 0.8-1.2 parts of this accelerator, 1.0-2.0 parts of pearlescent pigment, and 1.0 part of MEKP curing agent. Under these conditions, molding temperature typically runs 35-37°C with a gel time of 5.0-6.0 minutes, giving formulators a predictable working window for centrifugal casting equipment.
Why Composite and Craft Manufacturers Source This Accelerator
Sourcing managers for button and clear-casting production evaluate accelerators on color stability, cure consistency, and safe handling alongside peroxide curing systems. TT-RP-126 addresses the first two directly, and safe handling requires a specific mixing order described below.
Key Handling Notes
- This accelerator is a compound mainly composed of metal salts and must never be mixed directly with organic peroxide curing agents such as MEKP.
- Direct contact between it and peroxide curing agents can cause a violent reaction and even combustion.
- Correct mixing order: add the product to the resin first and stir evenly, then add the curing agent and stir thoroughly before use.
- Store in a cool place below 25°C, away from fire, heat sources, and radiation sources.
- Shelf life is 3 months when stored below 25°C.
For formulation support with unsaturated polyester resin systems compatible with this accelerator, our technical team can help confirm dosage and gel-time targets for your specific molding process.
Storage, Transport, and Sourcing Guidance
Transportation of this product should comply with applicable hazardous chemicals transport regulations, and buyers should confirm compliant handling procedures with their logistics provider before shipment. For resin curing system standards referenced across the composites industry, see the ASTM D20 committee on plastics.
Frequently Asked Questions About TT-RP-126
What is this accelerator used for?
It is an accelerator used to cure unsaturated polyester resin in clear casting applications, particularly poly buttons and transparent cast handicrafts.
What dosage is typically used?
In a typical centrifugal molding formulation, it is used at 0.8-1.2 parts by weight per 100 parts of resin, though exact dosage should be validated against your resin batch and target gel time.
Can it be mixed directly with peroxide curing agents?
No. This accelerator must never be mixed directly with organic peroxide curing agents such as MEKP, as direct contact can cause a violent reaction and even combustion. Always add it to the resin first, stir evenly, then add the curing agent.
What color does it impart to cured resin?
This accelerator itself is a blue-violet transparent liquid, and parts cured with it typically show a light color with a slight blue tint and bright hues, which is valued for clear casting applications like poly buttons.
How should it be stored?
It should be stored in a cool place below 25°C, away from fire, heat sources, and radiation sources, with a shelf life of 3 months under these conditions.
Request a Quote for TT-RP-126
If your production process requires a light-color accelerator for clear resin casting, contact our team with your target molding process and gel-time requirements. We can help confirm whether TT-RP-126 fits your formulation and provide supporting technical documentation and supply chain resource support for TT-RP-126 orders.
