Upcoming Light Brigade Training Courses in New Bedford include: Fiber Optics 1-2-3, Fiber Optics for Data Centers, Splicing Deep Dive and more. View More Details.

!! We are experiencing a phone outage at Fiber Optic Center today, June 2, 2026 !!
Please send any requests via email and we will respond as soon as possible.

Covestro Desolite® 3471-2-136 Secondary Optical Fiber Coating, UV Cure (10 kg)

COV-3471-2-136-10KG

Covestro 3471-2-136 UV Cure Secondary Coating (10Kg)

**8.5% Tariff charge to be added at time of shipment**
The Covestro Desolite® 3471-2-136 Secondary Optical Fiber Coating is a hard, fast-curing matrix material. Desolite optical coatings ensure the best economy of high-speed production, superior fiber attenuation and microbending performance. Available in a 10 kg bottle. 

Product Benefits:

  • Fast cure optical coating
  • Compatible with wet-on-wet or wet-on-dry coating process
  • Compatible with multiple DeSolite primaries

Liquid Coating:

  • Viscosity, 25°C: 4750 mPa·s
  • Liquid Refractive Index, 23°C: 1.519

Cured Coating (Tested at less than 1% R.H.):

  • Glass Transition Temperature Range, Tg: 29°C at E’ 1000 MPa
  • Glass Transition Temperature Range, Tg: 51°C at E’ 100 MPa

Updates

Product Change Notification:

As part of our product change notification requirements, Fiber Optic Center notifies our customers of any significant changes including but not limited to product packaging, material property updates and procurement part number changes. Covestro has changed the part number for this product from 3741-2-136-10KG to COV-3471-2-136-10KG. Please note this is the only change to this product.
If you have questions related to this product on which we may be of assistance, please feel free to contact Kelly Barker, Business Development Epoxies Fiber Optic Center: kbarker@focenter.com

Technical Support

A purchase from Fiber Optic Center includes access to a team of experienced technical experts with hands-on industry experience. From on-site support and training to troubleshooting, process development, yield improvement, evaluations, and calibrations, we provide the practical guidance and expertise needed to help you maximize productivity and achieve exceptional results. Click here for more details on the technical advantage of Fiber Optic Center.

Fiber Optic Center

4.9 71 Google reviews

Represents overall Google Reviews of Fiber Optic Center, Inc.