Lawter, a global leader in resin technology, offers an extensive portfolio of specialized offset resins designed for demanding printing applications. From rosin-based emulsifiers for emulsion polymerization to advanced polyester resins and fast-curing varnishes for metal decorating, Lawter provides the building blocks for high-performance offset ink systems.
PT Jaya Warindo Abadi is proud to distribute Lawter's advanced offset resin technologies across Indonesia, enabling formulators to create premium-quality lithographic and metal decorating inks with excellent stability, printability, adhesion, and cure response.
Lawter offset resins offer formulators a unique combination of properties essential for high-quality lithographic and metal decorating applications:
- High-Quality Rosin Soaps for Emulsion Polymerization: BUREZ™ series products are high-grade disproportionated rosin soaps that serve as excellent emulsifiers with low unsaponifiables and outstanding stability for latex production used in ink formulations.
- Advanced Polyester Resins for Metal Decorating: DECOTHERM™ polyester resins provide exceptional adhesion to metals, high gloss, excellent transfer on high-speed presses, and good overcoating compatibility with water-based coatings.
- Fast-Curing Metal Decorating Varnishes: Specialized varnishes designed for drawn aluminum cans and conventional steel/tin plate lithographic inks offer fast cure rates, allowing reduced oven temperatures or increased line speeds.
- Specialized Curing Systems: Complete systems including hydroxyl-functional polyesters, melamine cross-linkers, and blocked acid catalysts for optimized curing at elevated temperatures.
- Excellent Rheological Control: Structured polyester resins provide non-Newtonian rheology, resulting in highly structured inks with significant reduction in misting at lower tack levels.
Featured Lawter Offset Resin Products
| Product | Type / Chemistry | Key Characteristics & Properties | Primary Applications | Information |
|---|---|---|---|---|
| BUREZ™ NA18 502D | Sodium soap of disproportionated rosin (18% solids) | Low unsaponifiables, excellent stability. Solids 17.5-18.5%, pH 10-11, Sodium Dehydro Abietate >8.5% | Emulsifier in emulsion polymerization for offset ink latex | Lawter |
| BUREZ™ NK40 502D | Sodium & potassium soap of disproportionated rosin (40% solids) | Low unsaponifiables, excellent stability. Solids 39-41%, Dehydro Abietate >18% | Emulsifier in emulsion polymerization for offset ink latex | Lawter |
| DECOTHERM™ 1720 C | Metal decorating varnish | Fast cure rate. Viscosity 190 Pa.s, Tack 16. Typical bake schedule: 300°F/10 min → reduced to 3 minutes | Drawn aluminum cans (spindle press), steel/tin plate lithographic inks | Lawter |
| DECOTHERM™ 220 E | Hydroxyl functional polyester (68% in TDA) | Good adhesion to metals, very good printability, high gloss. Cures with melamine resins. Acid value 50 mg KOH/g | Metal decorating inks (spindle printing/dry offset) for 2-piece cans | Lawter |
| DECOTHERM™ 256 E | Blocked acid catalyst | Dissolved in propylene glycol esters. Acid value 105 mg KOH/g. Recommended usage: 1-1.5% in polyester/melamine system | Catalyzes curing of polyester and melamine resins for metal decorating inks | Lawter |
| DECOTHERM™ 260 E | Hydroxyl functional polyester (in TPG) | Good adhesion to metals, very good transfer on high-speed presses, high gloss. Easily overcoatable with water-based coatings. Acid value 27 mg KOH/g, VOC ~10% | Metal decorating inks (spindle printing/dry offset) for 2-piece cans | Lawter |
| DECOTHERM™ 261 C | Hydroxyl functional polyester | Good adhesion to metals, high gloss, very good transfer on high-speed presses. Excellent overcoatable with water-based coating. Good flow and pigment wetting. VOC ~8% | Metal decorating inks (spindle printing/dry offset) for 2-piece cans | Lawter |
| DECOTHERM™ 290 E | Structured hydroxyl functional polyester (in mineral distillate) | Non-Newtonian rheology, highly structured ink, significant misting reduction at lower tack levels. Better color retention. Acid value 35 mg KOH/g, VOC ~18% | Metal decorating inks (spindle printing/dry offset) for 2-piece cans | Lawter |
Note: DECOTHERM™ 220 E, 260 E, and 290 E are typically cured with melamine resins (such as HMMM) using DECOTHERM™ 256 E as the curing catalyst. These systems provide optimized performance for high-speed metal decorating applications.
BUREZ™ products should be stored to avoid freezing and direct sunlight at temperatures between 5-35°C (drums). DECOTHERM™ products should be stored at 10-30°C in tightly closed containers. Shelf life varies by product: BUREZ™ series (9 months), DECOTHERM™ 1720 C (6 months), DECOTHERM™ 290 E (12 months), and other DECOTHERM™ polyesters (24 months).
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