SILIPORITE® NK 20 AP – 5A Molecular Sieve Powder (Arkema)
SILIPORITE® NK 20 AP – 5A Molecular Sieve Powder (Arkema) - 50 Bags – Pallet (1000 kg / 2205 lb) is backordered and will ship as soon as it is back in stock.
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Buy 2+ pallets to save 7%, or 4+ pallets to save 12% — auto-applied at checkout.
| Minimum Qty | Discount |
|---|---|
| 2 + | 7% off |
| 4 + | 12% off |
Overview
SILIPORITE® NK20 AP by Arkema is a synthetic zeolite type A in **Calcium–Sodium aluminosilicate** form. With an effective pore opening of ~5 angstroms (5 Å), it's ideal for water adsorption and selective capture of low-molecular-weight organics (VOCs). Engineered as a low-density powder, it integrates easily into formulations to enhance moisture and VOC control.
Where it fits / Applications
- Non-foam polyurethane systems: helps prevent gassing, defects, and water-driven reactions.
- Paints, coatings & sealants: provides moisture and VOC adsorption in formulation.
- Adhesives & elastomers: stabilizes curing, reduces defects.
- 2K & 1K polyurethane systems: useful in both two-component and one-component systems.
- Castor oil molecular sieve pastes: effective in paste formulations thanks to fine crystal size.
Key advantages
- 5 Å pore size lets it adsorb water and small organics (VOCs)
- Low density powder - easy dispersion without heavy weighting
- Fine particles - good performance in paste or coating systems
- Strong compatibility with polyurethane systems to reduce defects
Typical specifications
| Pore opening | ≈ 5 Å (5 Å) |
| Chemical form | Calcium–Sodium aluminosilicate |
| Form | Fine powder |
| Primary function | Water & VOC adsorption / moisture control |
| Manufacturer | Arkema |
Specifications are typical and for reference. Final values confirmed at quote or on COA if available.
Packaging & availability
- Palletized only: 50 × 44.09 lb (≈ 20 kg) bags per pallet → total ≈ 1,000 kg (2,205 lb)
- Lead time: typically 2–4 weeks (confirmed on quote)
- Vendor MOQ / ordering: pallet-only ordering at this time
- Volume discounts: Buy 2+ pallets to save 7%, or 4+ pallets to save 12% — auto-applied at checkout.
Documentation & support
Need SDS, COA, or technical data? Visit our Documentation or contact us with your volume and application.
Questions & Answers
Q: What is the difference between NK20 AP and NK10 / NK30?
A: NK20 (“5 Å”) can adsorb both water and certain small organic molecules (VOCs), making it more versatile than NK10/3A, which are more water-selective.
Q: Can I use it in polyurethane coatings?
A: Yes. NK20 AP supports moisture and VOC control in non-foam polyurethane systems, paints, coatings, sealants, adhesives, and elastomers.
Q: What’s the minimum order?
A: Pallet-only: 50 × 44.09 lb (~20 kg) bags per pallet, total ~1,000 kg (2,205 lb).
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SILIPORITE® NK 20 AP – 5A Molecular Sieve Powder (Arkema)
