Solution Approach
RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Formulation Workflow
1
Polymer & Process Definition
Identify the resin and process (extrusion, molding, film) and the targets — thermal stability, clarity, flame retardance, slip, or color.
2
Additive Selection
Match stabilizers, antioxidants, plasticizers, lubricants, flame retardants, or masterbatch carriers to the polymer and processing temperatures.
3
Compounding Trial
Confirm loading and dispersion on a compounding or molding trial, checking processability, mechanicals, and aesthetics against the control.
4
Validation & Scale-Up
Verify long-term performance (heat aging, migration, weathering) and lock the formulation, packaging, and lot specs for production.
Recommended Chemistries (9)
3-glycidoxypropyltrimethoxysilane (GPTMS)
CAS 2530-83-8
Silanes & Organosilanes
Primary epoxy silane
Epoxy silane couples mineral filler to epoxy/anhydride thermoset; the glycidoxy group reacts into the resin network while silanols bond the filler, raising strength and cutting viscosity
Vapor Pressure: 0.002
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3-glycidoxypropyltriethoxysilane (GPTES)
CAS 2602-34-8
Silanes & Organosilanes
Ethoxy epoxy silane
Ethoxy epoxy silane with slower hydrolysis for longer working time during filler treatment
Physical Description: Liquid
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3-aminopropyltriethoxysilane (APTES)
CAS 919-30-2
Silanes & Organosilanes
Primary amino silane
Amino silane couples fillers into amine-cured epoxies and anhydride systems for improved dispersion and interfacial adhesion
Melting Point: -70 °C Boiling Point: 217 °C Density: 0.94 at 25 °C
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Hydrophobic Modified Fumed Silica
CAS 68909-20-6
Silanes & Organosilanes
Treated silica for non-polar systems
Pre-treated reinforcing filler showing the dispersion/viscosity benefit of a hydrophobized surface in resin systems
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3-aminopropyltrimethoxysilane
CAS 13822-56-5
Silanes & Organosilanes
Methoxy amino silane
Trimethoxy (faster-hydrolyzing) analog of the already-listed APTES; primary amine bonds mineral filler into the amine/epoxide-cured epoxy and anhydride thermosets explicitly named on the page. Same role, same problem.
Physical Description: Clear to straw-colored liquid with an ammoniaca…
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Vinyltris(2-Methoxyethoxy)Silane
CAS 1067-53-4
Silanes & Organosilanes
Moisture-cure systems
A-172 vinyl coupling agent; vinyl group radical-copolymerizes into the styrene crosslink of the peroxide-cured unsaturated polyester and vinyl ester resins named on the page, coupling mineral fillers in exactly those in-scope systems.
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Vinyltrimethoxysilane
CAS 2768-02-7
Silanes & Organosilanes
PE crosslinking and polyester
A-171 vinyl silane; radical-copolymerizes with the unsaturated polyester / vinyl ester matrix during peroxide cure to bond treated mineral filler. Page names both polyester and vinyl ester, so scoped to filler coupling here it is a genuine fit (distinct from its PE-crosslinking use, which is a different page).
Melting Point: ˆ'97°C Boiling Point: 123°C at 1013 hPa (converted to 101.3 kPa) (760… Density: Specific Density: 0.94 (water = 1)
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3-(2-Aminoethylamino)propyltrimethoxysilane
CAS 1760-24-3
Silanes & Organosilanes
Enhanced adhesion
DAMO / A-1120 / Z-6020 diamino silane; two reactive amines give stronger filler-to-resin coupling in the epoxy and anhydride thermosets on the page versus monoamino silanes. Genuine same-use complement to APTES.
Physical Description: Light yellow liquid Vapor Pressure: 0.03
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3-glycidoxypropyl methyldiethoxy silane
CAS 2897-60-1
Monoalkyl epoxy silane
Epoxy-functional coupling agent; glycidoxy reacts into the epoxy/anhydride matrix on the page, and the methyl (difunctional) substituent deliberately builds a lower-crosslink, more flexible filler interphase. Documented coupling-agent use, complementary to the listed trifunctional GPTMS/GPTES.
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Related Product Families
● Available
Amino Silane Coupling Agents
Aminopropyl silanes for adhesion promotion between polymers and mineral fillers, glass fiber, and metal surfaces
Adhesion PromotionCoupling
5 chemistries
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Vinyl & Methacrylate Silanes
Reactive silanes for PE crosslinking, polyester composites, and acrylic systems
CrosslinkingCoupling
5 chemistries
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● Available
Epoxy Silane Coupling Agents
Glycidoxypropyl silanes for epoxy composites and filled thermoset systems
Adhesion PromotionCrosslinking
3 chemistries
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● Available
Precipitated & Treated Silica
Hydrophobic and hydrophilic silica for rubber reinforcement, polymer thickening, and anti-caking
ReinforcementRheology
3 chemistries
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