New Plaster

[charliesteve]

Hi Everyone,
I have just had walls re-plastered and wish to paint them with Silk Emulsion. On the tin it says I have to seal new plaster with watered down matt emulsion. Could I just water down a bit of the silk emulsion I have all ready bought?
Thanks
Steve

[Teddio]

Paint the bare plaster with a mixture of 10 parts water to 1 part PVA glue. This will effectively seal the plaster.

[theshedman]

I would use a good quality matt to seal the walls first. Using slik may cause it to peal on later coats. I would never use PVA as this can often cause bubbling when you apply paint. See the copy below of an e-mail received from Dulux regarding this.



Thank you for your E-mail I can categorically confirm we DON'T recommend using PVA to seal new or bare plaster. This is because the PVA will seal any residual moisture on the plaster and may cause bubbling when it dries. This is also stated in the BS 6150 and our ICI site work instruction.

Hope this helps.

Omar Amjad, ICI Paints Technical Advice CentreICI Paints, Wexham Road, SLOUGH, Berkshire. SL2 5DSPhone: [phone]Visit our web site at http://www.duluxtrade.co.uk

[The Builder]

Diluted PVA can be very useful for old lime plaster which has become "friable" (powdery).

Shedman's "mist" coat is preferable for new plaster. Don't forget to wait for the plaster to dry out completely ........ no "damp" patches.

[bookbinder]

Do what it says on the tin. The makers know what is the best thing to do.

[carrust]

On new plaster I use a diluted mist coat of contract matt