What to do AFTER protec texture coating

[LegumeJuliet]

I could really do with some advice from people who know what they are talking about!

About 6 years ago I (foolishly) got a company called protectawall to coat the outside of my house with a "longlife" coating called protec. It was supposed to be fantastic, last more than 15 years (15 year warrenty) , not peel or flake etc etc. When I said I was thinking of getting a new door put in, and should I wait till after that to get the coating done I was told that for minor things like that they would come and make it good for me....

Anyway, the coating has never been very good. It has blistered, it has cracked... cracks in the render were never properly pinned. The company came back once to do some garuntee work. Then I finally got the door put in.... the coating pealed off in huge flakes - it really hadn't stuck on well at all.

When I contacted the company to get everything put right again, I have discovered that the original company has "gone bust", and therefor no work will be done under guarantee. But the son of the man who was running protectawall has a company called "Long Life Wall Coating" doing the same thing. And he gave me a quote to redo it all..... grrrrr

Well, I think I would do far better to stick to the cheaper alternative of paint seeing as the expensive stuff doesn't work anyway. However, I am clearly a bit naive and got led a dance once.... please could someone advise me with regards to the following so I don't get caught out again....

Will normal house paint stick to the oil based wall coating - or do I need a primer? Any advice on which paints and which primers are best?

Also, lots of the coating is really not stuck on to the wall, and coming off in flakes a foot across.... however I bet some of it sticks. Is it possible to remove the stuck on coating with sand blasting or similar, or if not how else do we cope with the surface flunctuations?


Thank you so much for your time.... I have just got it so wrong once before..... I really want to get it right this time....

 

[Pigeon85]

Was the render previously painted and what sort of state was it previously in,
Was the surface dusty beforehand?

 

[LegumeJuliet]

Thank you for your reply

The render was painted before the "long life coating" was applied. I don't know how dusty it was.... I don't know if they washed it before they applied the coating or not.

However, where the coating is flaking off in large chuncks, the surface that gets left underneather apears to be render rather than paint.... so in my opinion it looks like the coating has stuck to the last layer of paint, but the old layer of paint wasn't stuck onto the render well enough....

Liz

 

[Pigeon85]

Sounds like it could be a lack of prep work, probably just painted over already flaking/lifting paint.

Did you see any of the work being done? If so what did you see

 

[LegumeJuliet]

I didn't see the work done at all. They had to wrap the house up, and foolishly I let them do the work the week I was away on holiday... that's one of the reasons why in hindsight I have thought they didn't do the prep properly. I just made so many bad decisions.... now I need to try and get it right!

 

[Pigeon85]

What I would do is remove all loose material using a scraper then give a good go over with a pressure washer and give it a fungicidal wash. Then go for an oil based undercoat then 2 coats of oil based masonry.

I would choose oil based paint on the basis that Iam unfamiliar with painting onto a wall covering, there may well be better products out there for painting wall coverings that someone else knows of but with lack of knowledge in this area oil based would be the way to go.

 

[LegumeJuliet]

Thank you very much indeed for your advice. You have been super helpful

Keeping my fingers crossed it all goes a bit better this time!

Liz

 

[Bosswhite]

After cleaning off and filling it might be worth trying a couple of coats of this type of Masonry Paint.

Or you could try treating the walls with stabiliser and a couple of coats of water based Masonry Paint.

 

[Pigeon85]

It may well be worth contacting the manufacturer of the wall covering that has been applied and ask them what paints they advise.

 

[LegumeJuliet]

Thank you both Pigeon85 and Boss white for your advice.

Bosswhite - I had a look at the Johnstones website. I found the one you mentioned, but I also found one called Self Cleaning Masonry. Do you by any chance know if self cleaning paints are any good? I also found another one called StoColor Lotusan.

Many thanks for any thoughts you have on these self cleaning type paints....

Liz

 

[Bosswhite]

Thank you both Pigeon85 and Boss white for your advice.

Bosswhite - I had a look at the Johnstones website. I found the one you mentioned, but I also found one called Self Cleaning Masonry. Do you by any chance know if self cleaning paints are any good? I also found another one called StoColor Lotusan.

Many thanks for any thoughts you have on these self cleaning type paints....

Liz

I have painted a fair few exterior properties in the past, havent come across StoColor, sounds to me it may be an expensive gimmick, the information that the Company gives is that dust will wash off in the rain, this would happen with any paint I would have thought,
Most masonry paints stay good for between 5/10 years depending on location, and with DIY Pressure jet sprays the masonry can be cleaned off when required.

 

[LegumeJuliet]

Thank you Bosswhite. That's just what I needed to know!
Liz