+MouldI’ve got an area of mould that seems to be getting worse down my wall – how do I deal with it?
First of all you need to try and identify where the water is coming from that is causing the damp area that the mould is feeding on. Once you’ve stopped the water leak then treat the area with Sandtex Trade Fungicide, leave for 24 hours then wash down to remove all residue and allow to dry. You can then overcoat with a topcoat of your choice.
+Powdery SurfacesHow do I deal with powdery surfaces that need to be painted?
Powdery surfaces are caused by the paint film being exposed to the elements – sometimes it can be simply washed down before painting, if this doesn’t remove all the chalking then simply seal the area with Sandtex Trade Stabilising Solution prior to painting.
+Paint Washing OffI’ve used a competitors product and I had problems with the paint washing off – I was told it was due to me painting in November as it was a little colder and also we had a shower – is there anything I could do to avoid this next time?
Definitely – it sounds like the paint had not completely dried before wet weather came – try using Sandtex Trade 365 All Weather Masonry paint – specifically developed to use in adverse weather conditions, is rain resistant within 20 minutes.
+Exceptional Adhesion RequiredAre there any Sandtex Trade products that I can use over Sandstone?
Sandstone varies dramatically in its porosity – you can apply certain Sandtex Trade products but you will need to check if the surface is sandy and quite porous. If this is the case then you will need to treat the area with Sandtex Trade Stabilising Solution first and then with a topcoat for example Sandtex Trade Xtreme Xposure Smooth or Sandtex Trade High Cover Smooth.
+Paint Flaking OffSome of the paint on one of my exterior walls has started flaking off – what has caused this and how do I repair it?
There are two main causes for flaking – one could be overpainting grease, dirt or other contaminant or applying paint to a porous or powdery surface. It can also happen if you use a water-borne masonry paint over a solvent-borne paint. To overcome these problems with adhesion scrape away all the loose paint to a firm edge and abrade any glossy surfaces. For solvent-borne products it may be necessary to recoat in with another solvent based coating – for example Sandtex Trade 365 All Weather Masonry.
+Wrinkled TopcoatI’ve noticed that on some of my windows I’ve got a wrinkling in the topcoat – what has happened?
Sometimes the paint has been applied too thick but the main reason tends to be that you might have applied your topcoat before the first coat has thoroughly dried. You’ll need to scrape or sand the wrinkled topcoat down then repaint with your topcoat – but first of all you need to check whether that first coat has completely dried through. You need to take extra care in colder weather to allow extra time for the paint to dry completely.
+Cracking SurfaceOn some of my doors outside I’ve noticed cracking appearing – only slightly – what can I do to stop it getting worse?
Well if you’ve caught it early enough and the cracking hasn’t gone too deep then it’s not too much of a problem. It could have been caused by you applying the paint too thick or maybe you applied it in cold weather or possibly if you’ve painted a gloss over a very flexible paint system that was currently on. The way to solve this would be to remove any loose or flaking paint with a scraper or stiff bristle brush (not wire), sand any edges, prime the area and then repaint it. If the cracks have gone deeper then you’ll need to remove all the paint – right down – either by scraper, sanding or even using a heat gun – then primer and paint. Try using Sandtex Trade Flexigloss X-tra for added peace of mind.
+Losing GlossI’ve applied some gloss to my windows outside and they’re already starting to lose their gloss – what’s happened?
You’ll find many types of paint lose their gloss over a length of time but sometimes lower quality paints or paints that were meant for indoor use can lose it quicker than others. Sandtex Trade exterior gloss systems are specially formulated so that the binder and pigments are extremely resistant to UV attack and will keep its sheen level for longer.
+Use of PrimerDo I always need to use a primer on my wood and metal surfaces?
Yes, you do to provide a good key for the topcoat to adhere to, it can help seal surfaces and stops the topcoat from absorbing into the surface thus ensuring the durability and finish you desire.
+What Primer?I’ve got some normal wood primer that I haven’t used yet – is it ok to use this instead of the Flexible Primer Undercoat that I’ve been recommended to use with the Flexigloss X-tra I’ve bought?
It is key to use the Flexible Primer Undercoat as there are elements to this product that a normal interior wood primer would not have. It is flexible which will accommodate movement in the wood and temperature changes. It is also developed to work as part of the system that has gained the BBA endorsement of 8 years to guarantee the durability of the system.
- Rain Spotting
- Poor Gloss Retention
- Organic Growth
- Cold Weather Application
- Dirt Pick Up
- Poor Colour Retention/Fading
- Ferrous Render Rust