What is a Chemical Anchor?
Chemical or resin anchors are generic terms relating to steel studs, bolts and anchorages which are bonded into a substrate, usually masonry and concrete, using a resin based adhesive system. Ideally suited for high load applications, in virtually all cases the resulting bond is stronger than the base material itself and as the system is based on chemical adhesion, no load stress is imparted to the base material as with expansion type anchors and are therefore ideal for close to edge fixing, reduced center and group anchoring and use in concrete of unknown quality or low compressive strength. Although there are many differing variations and delivery systems, all systems operate using the same basic principle with the base resin, requiring the introduction, by mixing, of a second component to begin the chemical curing process, hence the term chemical anchor.
Is chemical anchor suitable for Maltese stone?
There are chemical anchor products available in the
market which are cheaper that fischer, but they are not suitable
for the Maltese stone.
Tessera ltd., imports only Styrene free chemical anchor, which means that it will not harm the surrounding substrate.
It is proven that styrene material, which is found in the majority of the imported chemical anchor products by local distributors, will by a couple of months, deteriorate the surrounding substrate, thus resulting in anchor failure.
Why is it important to clean the holes before using the mortar ?
Good chemical anchor alone will not give you the best results
On non official results conducted by fischer, by not cleaning the holes before using the mortar will drop the strength by 70% !!
Available mortar from our stores
The 100VT is ideal for home use where there is no need of a large quantity of material, and is self operated with just twisting the lower part of the package for chemical to be injected.
This is most popular in Malta as it uses the normal `silicone gun` and can be applied easily with no special injection guns.
For heavy users, this is the most economical version, always having the same product in larger quantity but needs a special injection gun.
FIS EM 390 S
The 390 S is the special resin mortar. It can be applied for higher stenght anchorage and can be applied even in underwater situations. The 390 S needs a special injection gun also.
Special features of the FSB are that it is the only system that it does not need any cleaning before use. Another feature is the curing time. In an approximate 2 minutes(Depending on weather conditions) it is ready for use.
Working in brick or hollow concrete
Since the brick or hollow concrete are empty inside, you need some special sleeves to use chemical anchor with.
Female connection in substrate
Thanks to this sleeve, you have a female connection.
Special mixing nozzles must be used for chemical anchor.