telling lime products

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has anyone used a lime render supplied by telling lime products called nbs unilit lightweight premixed render?got a job to price,and he wants this product.it`s going onto cob and it`s a insulated lime render.
 
have used a unilit product before but was for lightweight blocks not cob, it was good gear, just a base coat and thin coloured top coat ,sponged up , bloody expensive tho
 
the job is for a architect,so he seems to know is stuff.he says it needs to be 80mm thick so a few base coats are needed then topcoat.when you say thin topcoat merlin,do you mean like a thin coat system(acrylic) or a standard top coat?
 
apparently the insulation is in the render,perlite i think he said is the type on insulation.it`s going over cob so i suppose the standard board stuff would be no good.he seems to know all about this stuff, as said earlier he an architect.it`s got to be 80mm thick so a few coats are needed prior to top coat
 
lifted this from telling website

The mortar Unilit 20 is a hydraulic lime blended with perlite to provide a natural
insulation mortar that will eradicate problems caused by condensation or
thermal shock. In improving the insulation value of the building, Unilit 20
regulates the moisture content in the structure, which can occur due to the
introduction of heating into older structures. It is particularly suitable for
buildings of architectural or historical importance where skill and care in the
selection of the techniques for conservation is critical. Unilit 20 can be applied
internally to achieve thermal improvement without adverse affect upon the
performance or integrity of the original fabric The product is extremely
lightweight (4Kg/cm/m2) making it ideal for application in thicknesses from 15-
100mm onto weak substrates.

hope that helps.......
 
If its mixed with perlite then maybe it will go on 80mm thick,but still sounds weird to me.
 
gonna ring rep 2morrow and find out info.client said 80mm thick overall.a scat coat,2 30mm base coats then top.30mm coats does`nt sound right.
 
the job is for a architect,so he seems to know is stuff.he says it needs to be 80mm thick so a few base coats are needed then topcoat.when you say thin topcoat merlin,do you mean like a thin coat system(acrylic) or a standard top coat?

the unilit topcoat we used was two coat wet on wet like skimming and rubbed up with poly float , nice gear!
 
does the last coat of unilit 20 need a primer merlin?also it`s having 3 coats of unilit 20,does the final coat need to be rubbed up and sponged ready for top?
 
havnt used unilit 20 mate so dont know bout primer, the last coat doesnt need to be rubbed up ready for top coat but the neater it is the easier the top coat goes on!
 
right ok.1 last thing,what`s the finish like after using a poly float to finish?do you rub up as you would acrylic top coat?do you lay it on to the size of the grit?
 
i used unilit 20 and 30 about 3yrs ago in a basement. its horrible stuff to use and the finish coat failed, ie, it allowed the damp to show through. They may have improved the product since then
 
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