Sustaina™ formaldehyde-free glass nonwovens had therefore been developed and these were now being commercialised:
- · Tensile strengths of Sustaina™ were better than the Urea-Formaldehyde bonded glass nonwovens (dry) and the same when wet.
- · Hot-dry strength retention was triple that of UF.
- · Sustaina™ was the only product with a USDA certified-biobased bonding system.
· It cost less than UF or competitive acrylic-based formaldehyde-free systems.
In response to questions, Ms Peeters could not reveal the chemistry used in Sustaina™ but said the USDA certificate was awarded because 49% of the organic component of the nonwoven was bio-based. The resin itself is inherently flame retardant.