New self-curable acrylate resin for sensitive applications from iGM Resins
Last update on Jun 4, 2026
Formulators and product developers working with UV and LED curing systems can now evaluate a new resin technology from iGM Resins. Introduced as Photomer® SC91, the innovation features a new chemistry designed to transform how photoinitiation is delivered in UV-curable formulations. The technology aims to support efficient curing performance while expanding formulation possibilities for applications requiring advanced UV and LED curing solutions.
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Enabling UV Hg and LED curing with minimal photoinitiators
Photomer® SC91 is a self curable acrylate resin with built in photoinitiator functionality. Unlike conventional systems, it enables UV Hg or UV LED curing with no or only minimal addition of external photoinitiators. This is achieved by integrating the photoinitiating groups directly into the resin backbone.
This Type II photoactive concept combines acrylate and photoinitiator technologies in a single polymeric material. As a result, the photoinitiator part remains chemically bound within the structure.
View technical datasheet of Photomer® grades by IGM Resins »
Supporting regulatory and performance requirements
Photomer® SC91 addresses key formulation challenges in modern UV systems:
- Reduced or eliminated need for added photoinitiators
- Low migration potential for sensitive applications
- No detectable extractable photoinitiator under test conditions
- Polymer classification with molecular weight above 1000 Da
Check all acrylate ingredients by IGM Resins in Master Catalog of Coatings »
According to the supplier, Photomer® SC91 delivers strong technical performance across multiple dimensions:
- Efficient curing under both UV Hg and LED systems
- Excellent formulation compatibility
- Liquid form for easy handling and processing
- Typical use levels between 10 and 20 percent in formulations
Supplier reports that as a Type II system, it requires the presence of a synergistic amine or hydrogen donor to achieve optimal curing performance.
Designed for a wide range of applications
According to the supplier, Photomer® SC91 is designed for a wide range of UV and LED applications, including:
- Printing inks and packaging
- Overprint varnishes
- Industrial coatings
- Adhesives
- Electronics and advanced materials
Supplier reports that its flexibility allows formulators to simplify systems while maintaining high performance.
iGM Resins will expand Photomer® SC series to address evolving market requirements in performance, sustainability, and regulatory compliance. The company has indicated that additional grades are under development, with direction informed by customer feedback on acrylate and photoinitiator combinations.