sovereign plasprime

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rockhardsolidplastering

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always used pva but got a customer who has previosly had some re skimming done and it has cracked and asked me what could be done.i have recomended he pays for me to plasprime as that is the only one of these types of bonding agents that i can get locally.its approx 40m2 over old walls will 1 10 ltr tub be enuff as its expensive to go into another tub, can i water it down a bit and how long before plastering shud i put it on is 12 hours long enuff


cheers
 
rockhardsolidplastering said:
always used pva but got a customer who has previosly had some re skimming done and it has cracked and asked me what could be done.i have recomended he pays for me to plasprime as that is the only one of these types of bonding agents that i can get locally.its approx 40m2 over old walls will 1 10 ltr tub be enuff as its expensive to go into another tub, can i water it down a bit and how long before plastering shud i put it on is 12 hours long enuff


cheers
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You will get between 30 and 40m2 from a plasprime,depending on the substrate (suction, condition etc) it is water based so obviously you can water it down , but that is your choice and they always advise against watering these products down,it does have a much finer aggregate in it though so you can keep your skim a little tighter, as an alternative you could try the febond blue grit (about £20 from direct building products) coarser aggregate but performs ok, again about 40m2 a tub, then youv'e got thistle bondit which is coarser still and sticks like s**t to a blanket , tiles, wood, concrete, skin etc you name it this stuff bonds to it , then theres knauf beton kontact quality gear but harder to get hold off
 
isnt 'wickes plaster bonding agent' (wba 3kg tub) exactly the same stuff as betocotakt just with 'wickes' written on it?
 
bloody well is too.... only use it when i have to but it gets priced into the job.. :RpS_wink:
 
i use it all the time rock , what walls is it going over lime, gypsum and why do you think it's cracked.
 
henry said:
i use it all the time rock , what walls is it going over lime, gypsum and why do you think it's cracked.
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not sure why its cracked but looking at the room i have to do it has lots of different paint on some glossy,i would say that the last plasterers pva d over glossy paint.its just the hairline cracks but they dont want them.
the walls i have to go over are old with flakey paint so would like to try one of these special bonding agents everyone raves about and plasprime is the only one local.


warrior i cant find blue grit on that website you pm d me mate do you have a direct link
 
Its good stuff mate as with them all there great for suction control. I dont personally but you can get away with watering it down a bit with pva. Put it on with a sponge roller that should help you to keep an even coverage
 
barryed said:
Its good stuff mate as with them all there great for suction control. I dont personally but you can get away with watering it down a bit with pva. Put it on with a sponge roller that should help you to keep an even coverage
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dont agree mate, alright over paint where the suction has already been controlled to a large extent but if you were to fire it over bare plaster i reckon youd have a right sweat on.... unless thats just my experience with the wickes stuff...
 
I would not put it over plain gypsum for me pva is better for this. Plasprime is good over artex painted surfaces. yer you can add a little water with it
wait till the tub is half way down then add water rock.
 
henry said:
I would not put it over plain gypsum for me pva is better for this. Plasprime is good over artex painted surfaces. yer you can add a little water with it
wait till the tub is half way down then add water rock.
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there you go then, use it for what its designed for - a bonding agent where there isnt much suction which is what normally creates the 'bond', use pva for suction...
 
I always use a short haired type of roller with thistlebondit, gives a good, even spread:RpS_thumbup: Sponge one would be good as well, especially on rough walls.
 
never tried one mate but it sounds a bloody good idea cos its messy stuff if you use your normal pva noller.... goes bleedin everywhere.... its like its snowing sticky sand.... :RpS_cursing:
 
I meant good for suction control as in over artex I find it hangs round a while longer than just with pva
 
yeh, sppose, depends on how you dilute your pva though...
i like it nice and thick and bang loads on...
 
u should be paying £22.50 a tub plus vat i am getting mine from t.ps on a contract price.
plasprime is made from old pvc windows chop up mix in a water base acrylic primer. u can see the little white and black bits of plastic if u look close enough.....
The plaster must then be applied whilst the bonding coat is tacky, giving only a limited window of opportunity. Furthermore, where different backgrounds are encountered the bonding coat will dry at different rates increasing the difficulties in application.
 
I used thistle gyprime one time yellow in colour.one cost60but pissed it down into 3 tubs.it went miles and miles and miles and miles great for reskimming but hassle getting hold of it.
 
southlakes said:
"The plaster must then be applied whilst the bonding coat is tacky, giving only a limited window of opportunity."

This is not true and it one of the key advantages of Plasprime, it should be totally dry before plastering. When dry you can plaster until your plaster dries up.
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Remember reading on here about putting fibres in the first coat on cracking reskims,

very good point that Chris said regarding the differnces between PVA for suction and bonding agents for priming !!
 
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