|
| |
|
Announcement
BEVA 371 reformulated in 2010
Dear Conservators,
When Gustav A. Berger developed BEVA 371, he realized that some of
the components may become unavailable in the future 1. In the
1990’s we collaborated with Mr. Berger to identify new components which
could be used to replace any of the five existing compounds in BEVA 371.
When Laropal K80 (formerly Ketone N) was discontinued by BASF in 2008, we
chose an aldehyde ketone resin to replace the Laropal K80, a ketone resin.
This resin, like the Laropal K80, gives strength and elasticity to the
adhesive.
The reformulated adhesive is designated BEVA 371b . It is slightly
more yellow than the BEVA 371 (original formula) because the new resin is
more yellow. However it is equivalent to BEVA 371 in all other properties
such as:
 |
Good solubility in hydrocarbon solvents (VMP
naphtha, toluene etc.) |
|
Same activation temperature of 150º F or 65º C |
|
Good adhesion to various substrates (canvas,
metal, wood, plastic, etc.) |
|
High peel strength |
|
Good reversibility with solvents or heat |
|
Equivalent stability both thermal and chemical
|
BEVA 371b is available as a solution or as a dry
resin mix. The BEVA Film will remain original formula until further
notice.
George R. Chludzinski, PhD
President
1 "Conservation of Paintings:
Research and Innovation," Chapter 8, Gustav A. Berger, ISBN 1873132379
For More Information Contact:
Conservator's Products Company
P.O Box 601
Flanders, New Jersey 07836
|
Telephone:
|
973.927.4855
|
|
Fax:
|
973.927.4855
|
Email: info@conservators-products.com
|
|
