Last Updated: Jan 23, 2017     Views: 249

Dear Sir,


You asked about b-72 Acryloid and Hxtal. According to our Conservation department: "

Both B-72 and Hxtal can be excellent fill materials, but they have different applications. It all depends on the type of glass and object that needs to be filled. One is really not better than the other except in the treatment of a specific object. If you want to compare them you will need to have fairly narrow parameters.

Both can be colored with dry pigments or dyes."

You can see some publications on their department home page :

These are items you can likely obtain (if not online) through your local library's interlibrary loan department. We make copies and loan books for free to other libraries. 

Please let me know if you'd like more information, after looking at these resources. I am also copying some references from a bibliography on adhesives below. 



Adhesives - HXTL or HXTAL Epoxy

A Guide to Resources

Rakow Research Library

The Corning Museum of Glass



Bradley, S. M.  “Evaluation of Hxtal NYL-1 and Loctite 350 Adhesives for Glass Conservation,” International Council of Museums, Committee for Conservation, Preprints of the 9th Triennial MeetingLos Angeles, CA: ICOM Committee for Conservation, 1990, 2 vols., pp. 669-674.  Additional info: Dresden, DDR, 1990.  Adhesive evaluated for use with the Portland Vase


Fisher, Penelope.  “HXTAL NYL-1, an Epoxy Resin for the Conservation of Glass,” Glass and Enamel ConservationLondon: United Kingdom Institute for Conservation of Historic and Artistic Works of Art, 1992, pp. 6-9.  Additional info: Christine Daintith, ed.


Gross, Richard.  “Usually It Takes Me a Little Time to Be Happy: Edge Gluing Process Using Hxtal Nyl-1 Epoxy.”  Stained Glass, v. 95, no. 2, Summer 2000, pp. 118-119+. 


“HXTAL Epoxy Adhesive,” The CM Times.  [n.d., u.p., 5 pp.].  Additional info: special issue from Conservation Materials Ltd., Sparks, NV.   Epoxy resin used in glass repair. 


Nunes de Silva, Carolina.  “Investigation of Fynebond and Hxtal NYL-1.”  Conservation News, no. 65, March 1998, pp. 26-28, ill.  Analysis of two epoxy resins. 


Shashoua, Yvonne and Ling, Denise.  “A Comparison of Fynebond, Hxtal NYL-1 and Araldite 2020 Epoxy Adhesives for Use in the Conservation of Glass.”  Conservation News,  no. 66, July 1998, pp. 33-36.


United Kingdom Institute for Conservation of Historic and Artistic Works. Ceramics & Glass Conservation Group.  Adhesives and Consolidants for Ceramics & Related Materials: 25th October 1997.  Haynes, Janet and Koob, Stephen, ed.  S. l. : s. n., [1997?]  [iv], [53] leaves : ill., photos.   Contents:  A study of the effects of humidity on the curing of epoxy resins, HXTAL NYL-1, ARALDITE 2020 and FYNEBOND / Janet Haynes.  Restoring high-fired ceramics and glass with PARALOID B-72 / Stephen Koob.  Notes: "Transcripts of lectures given at the Ceramics and Glass Conservation Group one day Conference held at the Regents Park Conference Centre."  <N8554.5 .A23>

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