Photoinitiators
Photoinitiator PAG-005
Photoacid generator for cationic curing (proprietary grade)
High-purity photoacid generator grade with excellent thermal stability.
Product Description
PAG-005 is a high-purity photoacid generator supplied as a white powder melting at 138–148 °C with moisture below 0.1%. Under UV exposure it releases strong Brønsted acid, initiating cationic polymerization of epoxides, vinyl ethers and cyclic ethers.
Its thermal stability makes it suitable for one-pack cationic formulations requiring storage at elevated ambient temperatures. Typical dosage is 1–3 wt%. Detailed specification available to qualified customers.
Key Features
- High purity ≥98% with ≤0.1% moisture
- Excellent thermal stability for one-pack storage
- Efficient acid generation under UV
- White powder — no color contribution
Applications
- Cationic epoxy coatings
- UV adhesives with dark cure
- Photoresist systems
- Vinyl ether formulations
- Electronics encapsulants
Specifications
| CAS No. | — |
|---|---|
| Molecular Formula | — |
| Molecular Weight | — |
| Appearance | White powder |
| Assay (HPLC) | ≥ 98.0% |
| Melting Point | 138 – 148 °C |
| Moisture (KF) | ≤ 0.1% |
Packaging & Storage
25 kg fiber drum with PE liner. Store cool, dry and protected from light; shelf life 24 months.
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