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 (4)
UV-328 Benzotriazole UV Absorber (Tinuvin 328 Type)
CAS 25973-55-1
Specialty Additives
Organic UV absorber
Hydroxyphenyl-benzotriazole UV absorber; absorbs 300-380 nm UV and dissipates it as heat to protect the polymer from chain scission
Physical Description: Dry Powder, Pellets or Large Crystals; NKRA; Ot… Appearance: White to yellow powder or crystals Solubility: In water, log -1.37
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Benzophenone-3
CAS 131-57-7
Specialty Additives
UV Protection
Benzophenone UV absorber; harmlessly dissipates absorbed UV energy as a low-cost broad screen
Melting Point: 66 °C Boiling Point: 150–160 °C at 5 mmHg Density: 1.32 at 25 °C
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Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (HALS, Tinuvin 770 type)
CAS 52829-07-9
Hindered-amine light stabilizer; the nitroxyl/NO regenerative cycle scavenges chain-propagating free radicals to interrupt photo-oxidation (not a UV absorber) (source on demand)
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Polymeric HALS (Chimassorb 944 type)
CAS 71878-19-8
High-molecular-weight oligomeric HALS with low volatility and extraction resistance for thick sections and long outdoor service life (source on demand)
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