Why It Matters
The coating needs high low-shear viscosity (anti-sag, anti-settle in can) but low high-shear viscosity (brush/roll/spray application) — a thixotropic, shear-thinning profile
Solution Approach
The coating needs high low-shear viscosity (anti-sag, anti-settle in can) but low high-shear viscosity (brush/roll/spray application) — a thixotropic, shear-thinning profile 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
System & Substrate Assessment
Define the binder system (waterborne, solventborne, UV, powder), substrate, cure, and the VOC, durability, and appearance targets.
2
Additive & Resin Selection
Match resins, pigments and fillers, dispersants, rheology modifiers, defoamers, or biocides to the formulation and compatibility window.
3
Lab Let-Down & Optimization
Dial in loading and addition order through lab let-downs, checking dispersion, rheology, film properties, and storage stability.
4
Application & Performance Testing
Validate on the real application method and substrate, tracking gloss, adhesion, sag, cure, and weathering before scale-up.
Recommended Chemistries (5)
Fumed Silica
CAS 112945-52-5
Mineral Fillers & Pigments
Thixotropic thickener for solventborne systems
Hydrogen-bonded silanol network builds a reversible 3D structure at rest (sag/settle control) that collapses under shear for easy application
Melting Point: 1710 °C Boiling Point: 2230 °C at 760 mmHg Density: 2.2
Full Details
Hydrophobic Modified Fumed Silica
CAS 68909-20-6
Silanes & Organosilanes
Treated silica for rheology and matting
Silane-treated silica thickens non-polar/solventborne systems and resists humidity, giving stable thixotropy and anti-sag
Full Details
Bentone 38
CAS 12001-31-9
Surfactants
Conditioning
Organophilic hectorite clay that swells and gels in organic media to set yield stress for sag and pigment-suspension control
Full Details
Acrylates/beheneth-25 Methacrylate Copolymer
CAS 156798-18-4
Polymers & Resins
Viscosity Modification
HEUR associative thickener whose hydrophobe end-groups bridge latex particles, building shear-thinning high-shear-stable viscosity
Full Details
Hydroxyethylcellulose
CAS 9004-62-0
Specialty Additives
Surfactancy
Cellulosic thickener raises continuous-phase viscosity for sag resistance and open time in waterborne paints
Melting Point: Decomposes at 205ºC as Cellosize Density: Specific gravity (2%): 1.0033 g/cu cm Solubility: Soluble
Full Details
Related Product Families
● Available
Silicone Fluids & Additives
PDMS fluids, phenyl silicones, and silicone crosspolymers for defoaming, surface modification, and flow control in coatings
DefoamingFlow & LevelingSurface Modification
8 chemistries
View family
● Available
Rheology Modifiers & Thickeners
Fumed silica, organoclays, associative thickeners, and HEUR/HASE polymers for viscosity control
ThickeningSag Resistance
3 chemistries
View family