Dear People,
Can anybody tell me/know what is the resin/s used in and the packaging process of Resin based joint compound that is vacuum packed. When the vacuum pack bag is opened in general the paving slabs are sprayed with water first then the jointing compound is swept into the gaps and cures by means of moisture/air.
We are in need of producing the same kind of process but instead of sand small aggregate 1-3 mm for a project in the middle east where we don't have the time to mix the aggregate separately with the resin in mixers then lay the system, time being of the essence as the project has to cover large areas in only a 4 hour slot each day and the mixing on site will take 2 hours of the 4.
We are looking for the known methods and what resins and or polymer's probably P.U based as well as being Aliphatic opposed to aromatic because of the sun and the appearance having to be stable.
The resin has to be something like a 1-component, high solids, medium viscosity, hard-elastic P.U binder that can be trafficked .
The problem we are having is that in fact we have 1-component resins that we use for our product but once vacuum packed in varies ways the product still sets within 24 hours, so this can not be what is used in sand resin pointing compound or we are missing something.
So does anyone know the correct way in which we need to achieve this and the correct resins polymers to used that will not set once vacuum packed ?. The aggregate dry vacuum packed is giving a reading of 0.1 percent oxygen the same as grouting compound the best we have achieved is 0.3 with our 1 component resin but still sets within 24 hours under vacuum pack, some one said the resin needs to be more paraffin based, others say more polybutadiene agent for bonding based.
Ideally we are looking for a u.k manufacturer of the resin we need to use, but all information chemical/resin and polymers we need to be using and the correct process of vacuum packing the product s all needed because we are at present obviously doing something wrong.
All information needed.
Many Thanks.