Materials — Process Challenge

Matières premières époxy et polyuréthane

La formulation des adhésifs et mastics nécessite des résines époxy, des durcisseurs amines et des matières premières polyuréthane (isocyanates/polyols)
Updated Jun 2026
Approche de solution

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 Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (8)
Bisphenol A diglycidyl ether (DGEBA) epoxy resin
CAS 25068-38-6
Additifs de Spécialité
Résine époxy liquide standard
Standard liquid epoxy resin - difunctional glycidyl ether that crosslinks with amine hardeners into rigid, chemically resistant adhesive/coating films
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Bisphenol A
CAS 80-05-7
Polymères et Résines
Primary raw material for epoxy resins
Aromatic diol building block reacted with epichlorohydrin to make DGEBA epoxy resins; raw material feedstock
Point de fusion:153–156 °C   Point d'ébullition:220 °C at 4 mmHg   Densité:1.195 at 25 °C
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Bisphenol F diglycidyl ether (DGEBF) epoxy resin
CAS 9003-36-5
Additifs de Spécialité
Réticulation / Durcissement
Difunctional bis-glycidyl ether of bisphenol F (the bisphenol-F analog of DGEBA, not a phenol-novolac epoxy). Its lower viscosity and improved solvent/chemical resistance suit high-solids and chemically resistant adhesives and coatings
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Tetraethylenepentamine
CAS 112-57-2
Amines et Amides
Réticulation / Durcissement
2320 (TETRAETHYLENEPENTAMINE) · Class
Multifunctional polyamine hardener whose five reactive N-H sites open epoxy rings to build the cured network at ambient temperature
Point de fusion:-40 °C   Point d'ébullition:340 °C at 760 mmHg   Densité:0.998 at 20 °C
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Polyetheramine D-230
Difunctional polyether-amine curative giving epoxy systems flexibility and long pot life for adhesives and composites. (Listed by exact spine name; the spine carries no CAS for this grade, so none is asserted.)
Methylene diphenyl diisocyanate (MDI)
CAS 101-68-8
Additifs de Spécialité
Réticulation / Durcissement
2206 (DIPHENYLMETHANE-4,4'-DIISOCYANATE) · Class
Aromatic diisocyanate that reacts with polyols to form the urethane network in PU adhesives/sealants and elastomers
Physical Description: Diphenylmethane-4,4-diisocyanate is a light yel…   Appearance: White to light yellow flakes   Odor: Odorless
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Toluene diisocyanate (TDI)
CAS 26471-62-5
Additifs de Spécialité
Réticulation / Durcissement
Reactive aromatic diisocyanate for flexible PU foams and elastomer prepolymers
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Dimethyldicyane (3,3'-dimethyl-4,4'-diaminodicyclohexylmethane)
CAS 6864-37-5
Genuine cycloaliphatic diamine epoxy curing agent (commercially standard, e.g. BASF Laromin C260 class). CAS 6864-37-5 correctly resolves to 4,4'-methylenebis(2-methylcyclohexylamine); its two ring-borne primary amines crosslink epoxy resins. Cycloaliphatic diamines are specifically the class chosen for low-color, UV- and chemical-resistant epoxy casting/coating/adhesive systems, exactly the use-c
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Détails complets

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