Angsvagen, Sweden – PU cast parts and rollers manufacturer Elastolan has replaced the curative MbOCA with Chemtura’s Adiprene well before its 2017 REACH sunset date.
As UTECH-polyurethane has reported previously, under EU REACH regulation the use of MbOCA (also known as MOCA) will be prohibited within EU companies beyond November 2017.
The legislation meant individual companies using 1 tonne/year had to secure authorisation for its use from REACH by 22 May, 2016.
Elastolan owner and ceo Ronnie Smahl said he had decided years ago to quit MbOCA, independent of any regulations adding that with the MbOCA system, “we had to get permission every third year from the government to be able to handle it.”
Smahl added: “The problem was finding a good replacement material that could cover every product Elastolan made, from the smallest to the biggest part,”
“When we processed MbOCA we already had an Low Free TDI, so it was natural for us to have an MDI low-free monomer as well. One way to go was to keep the Low Free TDI and just change the curative for example. But, depending on the application, their properties aren’t always good enough.
“Choosing a low free system in MDI feels like the right way to go, to meet the future in Europe.”
A benefit of Adiprene is that it can be mixed with the catalyst to decrease the demoulding time, Smahl added.
“It does not affect the properties of the material, so that is really fantastic we think”, said sales and production manager Robin Nord.
Elastolan has been processing Low Free MDI for more than two years. “We have less abrasion and less setting problems and these type of properties are much better than with the earlier TDI/MbOCA system,” said Smahl.