K REND, why does it split ?
- Thread starter BigBish
- Start date
Removed_User
Active Member
Cos you bish- bashed it
Topspread16
Well-Known Member
What stuff you been spraying? K1 spray or K1 silicone? I take it you mean sagging between ribbons?? Only had it happen bad once that was because my r&s was done with. Straight on block or base and mesh?
BigBish
Well-Known Member
Attachments
Topspread16
Well-Known Member
Looks like it’s sagging where your lifting your rule off. Low suction on to hpx to, must just be abit to much weight on it.
Mr White
Active Member
If it’s the one loaded with silicone that’s why.
Silicone and water do not mix hence the splits, it’s the same with a normal rotar and stator it won’t go thorough and a clamped rotar and stator is needed to allow the material and water to be forced together.
If you manage to get it on the wall the silicone tries to repel the water and you end up with splits.
The way round it, I’m led to believe, is to really over work the material and rule several times making sure the material is pushed hard together.
I’m sure some swear by the stuff but we tend to stay away. Basecoats are decent but left a minute too late become sticky and unworkable
Silicone and water do not mix hence the splits, it’s the same with a normal rotar and stator it won’t go thorough and a clamped rotar and stator is needed to allow the material and water to be forced together.
If you manage to get it on the wall the silicone tries to repel the water and you end up with splits.
The way round it, I’m led to believe, is to really over work the material and rule several times making sure the material is pushed hard together.
I’m sure some swear by the stuff but we tend to stay away. Basecoats are decent but left a minute too late become sticky and unworkable
Mr White
Active Member
Just to add, I’d bet only the top has split due to is being in the shade therefor wetter for longer allowing the materials longer to try and seperate.
I’ve had the same problem spraying grey k rend, sprayed the front and side of a property on a damp overcast day and was riddled with splits, sprayed the back on a warmer sunnier day and went like a dream.
If we sprayed it again in the future I’d make sure the panel was in full sun, conditions were perfect, rule several times, serated spat it and then spat it flat. That’s a lot of work compared to other materials.
I’ve had the same problem spraying grey k rend, sprayed the front and side of a property on a damp overcast day and was riddled with splits, sprayed the back on a warmer sunnier day and went like a dream.
If we sprayed it again in the future I’d make sure the panel was in full sun, conditions were perfect, rule several times, serated spat it and then spat it flat. That’s a lot of work compared to other materials.
essexandy
The Lake Governor
Bloody hell that's disheartening.
I've never touched Krend but have heard the same said before.
BigBish
Well-Known Member
Next day dry base coat.
Its k1 not silicone
I used a serated edge followed by a feather edge then spat.
It was basecoated before the beads went on, to get the full 15mm. Maybe thats why, either way its a great looking material but takes f**k**g ages to work it and even longer to dry!
essexandy
The Lake Governor
Do you ever get any problems with Parex? I can't remember ever hearing anyone moan about it.
vfr12
MOTORC*NT
Silicone or not, that’s not the problem here, it’s the suction. When you do the mesh the day before the chances you get slumps like this are great. It happens with all manufacturers. The only solution here is to do the top coat in two passes.
vfr12
MOTORC*NT
Yes, you do
Nope, nor Weber, sas, enewall, sto which we all regularly use.
Any issues arising with prebagged render is nearly always applicator issues, but k rend is the exception that we use (paid for by the developer) and it's been a hastle with it slumping shrinking etc.
A few issues you may say it's applicator error but most renders I know won't touch it, we can't all be wrong.
We've sprayed 2 pases on 7n block and still had issues.
The last job we did i got the rep out, he blamed the wind
vfr12
MOTORC*NT
Someone/something has toWe've sprayed 2 pases on 7n block and still had issues.
The last job we did i got the rep out, he blamed the wind
.With all honesty I am avoiding krend as well.
It’s the suction tbh. Sometimes is better you don’t prime at all
Formby plastering
Well-Known Member
Is it just me who really likes krend then never had a problem although I've always handball Ed.
It's just you buddy, lap it up your the chosen one.
Spray
Well-Known Member
What was the issues dudeWe've sprayed 2 pases on 7n block and still had issues.
The last job we did i got the rep out, he blamed the wind
Spray
Well-Known Member
We spray it every week only ever had one issue that’s was parexes fault and they sorted it
Spray
Well-Known Member
What issues you had
Formby plastering
Well-Known Member
I feel honoured
Slumps etc it's the sand In the aggregate I think, it just just slumps there's no body to it.
And another issue we had was some rough bags in a pallet that were off colour. The thing is why put up with it when there are numerous different manufacturers out there, there base coats are very good such as hp12 but the top coats are gash.
Jimbob9
Active Member
Did you spray it mate and did you serrate it before levelling? Not a lot of body to HPX as its mostly adhesive so it goes on thin on CP board it'll slide if applied too thick and / or you trap air which doesn't get removed. Trapping air and then slipping tends to be a problem for the sprayers only if you don't serrate. Whats the reason for HPX anyway, HP12 may have been better depending on what you are doing?
You try putting Maite on in a thick coat on CP board with a quick spat. Good luck.
You try putting Maite on in a thick coat on CP board with a quick spat. Good luck.
Spray
Well-Known Member
That’s not parexs fault is it ?
Spray
Well-Known Member
Hp12 very good ! Everything else I don’t like