KDD AH1050A/B Waterborne Acrylic Resin – Ideal Partner for Sintering Inks

1. Application Scope

• Applicable Products: Water-based high-temperature tempered glass sintering inks (home appliance glass, automotive glass, etc.), electronic pastes, thick-film pastes and ceramic pastes.
• Applicable Working Conditions: High-temperature sintering process for high powder-oil ratio & high solid content systems, especially for substrates including glass, ceramics and electronic components.
• Core Pain Points:

1. High loading/high powder-oil ratio ink tends to suffer sedimentation, delamination and poor storage stability.

2. Carbon residues easily emerge after high-temperature sintering and damage substrate transparency & surface appearance.

3. Insufficient ink adhesion causes peeling off after drying; finished products fail to bear handling or collision and lower production efficiency.

4. Conventional formulas feature poor water washability, frequent screen clogging and low construction efficiency.

5. Difficult to coordinate rheology, drying speed and loading capacity in formula adjustment, resulting in poor compatibility.

2. Core Technical Specification

1. Applicable Substrates: Tempered glass, ceramic substrates, electronic paste substrates, thick-film circuit substrates.

2. Resin Formula System: Compound formula of AH1050A + AH1050B water-soluble acrylic resin

• AH1050A: High thixotropy & excellent anti-settling property, 50% solid content, viscosity: 3000~6000cps @25℃
• AH1050B: Excellent fluidity, medium-fast drying, superior pigment wetting & tinting power, 55% solid content, viscosity: 2000~5000cps @25℃
• Blended usage enables flexible tuning on formula rheology, loading and drying property to fit diverse high powder-oil ratio sintering ink formulas.

3. Pre-curing Condition: 120\180℃, 3\5min

4. Sintering Temperature: Compatible with standard glass/ceramic sintering at 600~720℃; resin fully decomposes without any residue or carbon mark.

5. Key Performance Index:

• High Loading: Maximum pigment solid content of finished ink reaches above 87%. High-solid formulation holds abundant glaze powder free from sedimentation and layering for high powder-oil ratio system.
• Strong Adhesion: Firm bonding between dried ink layer and substrate; no peeling or shedding to simplify product handling, reduce rework and improve productivity.
• Storage Stability: AH1050A’s premium thixotropy and anti-settling performance keep ink stable without sedimentation or delamination during long-term storage.
• Water Cleanability: Water/ether alcohol soluble; easy screen cleaning without clogging. Defective glass can be directly rinsed by water for eco-friendly & efficient production.
• Sintering Performance: Complete burnout without residue or carbon traces after high-temperature calcination, keeping original substrate appearance and transparency intact.

3. Performance Comparison Table

4. Conclusion & Selection Guidance

• Conclusion: KDD AH1050A/B compound water-soluble acrylic resin effectively fixes core drawbacks of high-load sintering ink including sedimentation, sinter residue, poor adhesion and bad washability. Balanced environmental property and sintering stability make it an optimal resin option for high powder-oil waterborne sintering ink across glass, electronic and ceramic industries.
• Selection Suggestions:

1. For high loading & high powder-oil formulas: Main AH1050B supplemented with AH1050A to enhance powder wetting & dispersion.

2. To optimize rheology, drying speed and anti-settling effect: Raise proportion of AH1050A appropriately.

3. Reference official blending ratio: AH1050A:AH1050B =28:12 or 14:19; fine-tune proportion based on your glaze system after pre-solvent stability test and lab trial.

5. Company Profile & Technical Support

KDD Guangdong KDD Functional Materials Co., Ltd. specializes in R&D and application of functional resins. We own mature formulation technology and industrial application cases for waterborne high-temperature sintering ink and electronic paste resins. Custom formulation service, sample development and bulk supply are available. Our products comply with domestic industry norms and international export environmental standards to help clients upgrade sintering technology into high-performance & eco-friendly production.

6. FAQ

Q1: Can AH1050A and AH1050B be used separately? What is the recommended blending ratio?

A: Both resins support independent usage. AH1050A features high thixotropy and fast drying for fine pattern printing & hollow screen printing requiring strict thixotropy; AH1050B focuses on loading capacity, fluidity and medium-fast drying. Recommended ratio: AH1050A:AH1050B=28:12 or 14:19; final proportion shall be adjusted via lab testing according to your glaze, powder-oil ratio and production process.

Q2: How about sinter residue performance? Will high temperature damage substrate appearance?

A: AH1050A/B is custom-formulated for high-temperature sintering with thorough burnout property. Fully decomposed at regular 600~720℃ glass/ceramic sintering without carbon residue, protecting substrate transparency and appearance to meet strict cosmetic inspection standards.

Q3: How is water washability? Does screen block easily?

A: AH1050A/B dissolves in water, alcohol and ether solvents. Used screens and defective glass can be cleaned directly with water or alcohol ether solvent without residual clogging. It improves screen recycling rate and production efficiency while eliminating environmental & safety risks from solvent cleaning.

Contact us anytime for technical datasheet, free sample trial and customized formulation solution.