As technology ever increases, so does the need to bond substrates which have never existed before. This requires innovation from adhesive manufacturers both in terms of chemical development and application improvements.
Accoya is wood, but not as you know it. It is modified timber in which a process called acetylation, a cutting-edge patented technology, enables it to resist rot, defy the elements and stay strong for decades. This process results in a stronger, more durable wood while reducing the maintenance frequencies for coatings. The change in cell structure also means that the wood is virtually rot and insect proof. Mould and fungi do not recognise Accoya as wood and therefore don’t attack, while the modified structure is indigestible to insects.
The effect of this process on adhesives, is that traditional wood bonding adhesives struggle to give a satisfactory bond.
Ureka have been working with Accoya for a number of years now and have developed two products which will bond Accoya to the levels of performance product.
ADHESIVES FOR LAMINATING ACCOYA
Prefere 4050 liquid resins mixed with hardener Prefere 5750, is a fully weatherproof adhesive system especially suited to the manufacture of large laminated timber structures. Prefere 4050 adhesives are also suitable for use in the production of heat resistant composite structures, eg fire-resisting doors and will give an excellent bond strength when bonding Accoya
ADHESIVE JOINTING FOR ACCOYA
For jointing applications, Aro-Bond 920 or 947 are the best option and have been extensively tested for bonding Accoya. Aro-Bond 920 is a single component moisture curing polyurethane wood adhesive with excellent water resistant characteristics. Aro-Bond 920 meets the requirements of BS EN204 category D4 for water resistance.
For more information on the bonding, please contact us on 0117 971 1364 or email us on firstname.lastname@example.org.