Arkema polyester resins — A comprehensive technology offer for coatings & adhesives
Coil coatings
SYNOLAC® high-solids, oil-free polyesters address the full coating system for pre-coated metal (steel, galvanized steel, aluminium).
Application coverage
- Topcoats and clear coats (interior and exterior architecture)
- Back coats and primers for galvanized steel and aluminium substrates
- Metal decorating enamels
- Hot laminating adhesives for foils and films
Technical properties
- High solids content for improved film yield and process efficiency at high line speeds
- Superdurable grades available for demanding outdoor durability requirements
- Very good adhesion to steel, galvanized steel and aluminium
- Excellent flexibility and formability — critical for post-forming operations
- Overbake resistance and wide processing window
- Reactivity with a variety of crosslinkers (melamine, isocyanate, epoxy)
Can coatings
SYNOLAC® solutions for exterior can coating (cans, tubes, aerosol, drums)
SYNOLAC® oil-free liquid polyesters are formulated for the stringent performance requirements of metal packaging.
-
Exterior coatings: base coats, printing inks, overprint varnishes for food & beverage cans, caps & closures, easy-open-ends
- BPA-NI solutions addressing brand owner requirements for metal packaging
-
Good adhesion to metal substrates
- Superior chemical resistance, excellent sterilization resistance
- High hardness combined with outstanding flexibility scratch resistance
-
Good performance in low bake cure conditions
VITEL® solutions for interior can coating
VITEL® high molecular weight, linear saturated copolyester resins from Bostik are specifically engineered for interior can coating formulations, delivering the performance required by food and beverage packaging.
-
BPA-free grades compliant with FDA and EU food contact regulations
- Excellent chemical, acid and retort resistance — suitable for 2- and 3-piece cans
- Outstanding flexibility and adhesion to metal substrates
- Organoleptically neutral: no off-taste or off-smell transfer to food content
- Compatible with melamine, benzoguanamine and blocked isocyanate crosslinkers
- Available in solid or pre-solvated form for streamlined formulation
Powder coatings
REAFREE® carboxylated and hydroxylated saturated polyester resins cover the complete range of thermosetting powder coating formulations — from hybrid interior systems to superdurable exterior grades — including grades compatible with rPET-based and mass balance feedstocks.
Pure polyester systems — Exterior & Architectural
- TGIC and TGIC-free carboxylated polyesters for exterior and architectural applications
- Excellent UV stability, gloss and color retention for outdoor service life
- Strong resistance to environmental exposure — suited to architectural profiles, metal building components and outdoor furniture
Pure polyester systems — Superdurable
- Superdurable grades (REAFREE® 5700, 5706, 5709): variations in flow, flexibility and storage stability to support different formulation targets
- Outstanding weather and corrosion resistance for demanding outdoor applications (lighting, window and door trim, agricultural and construction equipment)
- Compliance with AAMA (up to 2604), QUALICOAT (up to Class 2) and other architectural standards
Hybrid systems (polyester-epoxy)
- Balanced carboxylated polyesters for polyester-epoxy hybrid formulations
- Good adhesion to metal, corrosion resistance, controlled cure behavior, smooth surface finish
- Low-temperature cure options: efficient crosslinking below 135–160°C
- Suited to office furniture, cabinets, domestic appliances, indoor industrial and automotive applications
Polyurethane systems (hydroxylated polyester)
- Hydroxylated polyester grades for PU powder coatings
- Targeted at demanding automotive and car body applications requiring high flexibility and chemical resistance
Hot melts and adhesives
REALKYD® polyester polyols are used as base resins for solvent-free polyurethane adhesive and hotmelt systems, offering a well-defined structural platform for 2K and 1K PU formulations. They are as quick as conventional hotmelt while having the strength of a reactive system.
- High performing polyester polyols from linear to branched structure
-
Wide range from highly crystalline, liquid & amorphous grades
- Precisely controlled molecular weight, OH value and acid value
- Excellent compatibility with MDI, TDI & aliphatic isocyanate crosslinkers
-
Tunable open time — from extended (liquid grades) to short (crystalline) to shortest (amorphous)
-
Good flexibility across all grade types
-
Various bonding profiles to meet adhesion requirements
-
Bio-based grades available with up to 100% bio content, delivering equivalent mechanical performance, flexibility & chemical resistance
Realkyd polyester polyols are used in different polyurethane applications
- Hotmelt adhesives to TPU & casting systems
- From foams to footwear & elastomers
- From coatings to radcure & water dispersions
Product portfolio overview
|
Brand |
Technology |
Molecular architecture |
Key technical parameters |
|
|
Saturated oil-free & acrylic-modified polyesters (solventborne) |
Low & medium molecular weight. Linear and branched. |
Tg, OH value, acid value, solids content, solvent compatibility |
|
|
Saturated carboxylated / hydroxylated polyesters (powder) |
Carboxylated & hydroxylated ; wide acid value range. |
Acid value, OH value, flow, Tg, Wide range of cure temperature |
|
|
Polyester polyols (liquid) |
Low to medium molecular weight. Crystalline, liquid or amorphous grades. |
OH value, molecular weight, viscosity, isocyanate compatibility |
|
VITEL® |
Saturated copolyesters (solventborne / solid) |
High molecular weight. Linear; amorphous & semi-crystalline. |
Tg, molecular weight, retort resistance, crosslinker compatibility |
