Black Sealant?

[Gagakev]

Got to re-seal my awning rail to stop damp above awning light

Normally use white sikaflex 512, BUT this van has Black mastic.
Is there sikaflex 221 which is black the same thing, just a differerant number due to the colour differance?
Or is there another make I can use?

 

[WoodlandsCamper]

Try here
(I just Googled )

 

[Gagakev]

I have googled as well but was wondering if they have the same properties.

Prob have to contact there tech's to confirm, but thought someone would know.

 

[Parksy]

EDIT; PUT THIS IN TECHNICAL BUT ARRIVED IN NEW MEMBERS_ CAN ONE OF THE MODS MOVE IT PLEASE?
(YES I KNOW IT'S IN CAPITALS )

sorted Kev

 

[Sproket]

Spot the difference

Sikaflex®-221 FS
One-component adhesive sealant
Technical product data:
Chemical base one-part polyurethane
Colour White, grey, black, brown
Density (DIN 53479) (uncured) 1.2 – 1.3 kg/l depending on colour
Stability (non-sag properties) Good
Cure mechanism Moisture-curing
Tack-free time* 20 minutes approx.
Rate of cure* 3 mm per 24 hrs. (see diagram)
Shrinkage (DIN 52451) 5% approx.
Shore A hardness (DIN 53505) 35 approx.
Tensile strength (DIN 53504) 1.8 N/mm2
Elongation at break (DIN 53504) 500% approx.
Tear strength (DIN 53515) 6 N/mm approx.
Glass transition temperature (DIN 53445) -45°C approx.
Service temperature (continuous)
short term (max. 8 hrs.) -­40°C to +90°C
120°C
Volume resistivity (DIN 53482) 1010  cm approx.
Movement accommodation factor 10% of joint width
Shelf life (stored below 25°C) 9 months

Sikaflex®
-512 Caravan
Excellent adherent, weather resistant sealant
Technical Product Data
Chemical base 1-C polyurethane
hybrid
Colour (CQP1
001-1) White
Cure mechanism Moisture curing
Density (uncured) (CQP 006-4) 1.4 kg/l approx.
Non-sag properties Good
Application temperature 5°C to 35ºC
Tack free time2
(CQP 019-1) 30 min. approx.
Curing speed (CQP 049-1) see diagram
Shrinkage (CQP 014-1) 2% approx.
Shore A-hardness (CQP 023-1 / ISO 868) 40 approx.
Tensile strength (CQP 036-1 / ISO 37) 1.8 N/mm2
approx.
Elongation at break (CQP 036-1 / ISO 37) 400% approx.
Tear propagation resistance (CQP 045-1 / ISO 34) 5.5 N/mm approx.
Glass transition temperature (CQP 509-1 / ISO 4663) -60°C
Electrical resistance (CSQP 079-2 / ASTM D 257-99) 1010 Ω cm approx.
Movement accommodation factor 10% approx.
Service temperature (CQP 513-1) permanent -40°C to 90ºC
Short term 4h @ 140°C

And there is the 521 .....

Sikaflex®-521 UV
Excellent adherent, weathering resistant sealant
Technical Product Data
Chemical base Silane Terminated
Polymer
Color (CQP1 001-1) White, grey, black
Cure mechanism Moisture-curing
Density (uncured) (CQP 006-4) depending on color 1.4 kg/l approx.
Non-sag properties (CQP 061-1) Good
Application temperature ambient 5 - 40°C (40 - 105°F)
Tack free time2 (CQP 019-1) 30 min. approx.
Curing speed (CQP 049-1) (see diagram)
Shrinkage (CQP 014-1) 2% approx.
Shore A-hardness (CQP 023-1 / ISO 868) 40 approx.
Tensile strength (CQP 036-1 / ISO 37) 1.8 N/mm2 approx.
Elongation at break (CQP 036-1 / ISO 37) 400% approx.
Tear propagation resistance (CQP 045-1 / ISO 34) 5.5 N/mm approx.
Glass transition temperature (CQP 509-1 / ISO 4663) -50°C (-60°F) approx.
Volume resistivity (CQP 079-2 / ASTM D 257-99) 1010 Ω cm approx.
Service Temperature (CQP 513-1) -40 - 90°C° (-40 - 195°F)
Short Term 4 hours 140°C (285°F)

 

[Gagakev]

Cheers Sir Sprocket,

All three have different propeties
Including;
Density
Shrinkage
Elongation at break
Shore hardness
Elongation at break
glass transition
Chemical Base

Now what difference that lot makes, I haven't got a clue

Did try to ring there tech department this afternoon but no answer!! Will try again tomorrow.

 

[Damian]

Use Soudall Fixall.
They do it in various colours including Black, and its easier to use and finish than Sikaflex.

https://www.abbuildingproducts.co.uk/soudal-fix-all-pr-18.php

 

[Gagakev]

Use Soudall Fixall.
They do it in various colours including Black, and its easier to use and finish than Sikaflex.

]https://www.abbuildingproducts.co.uk/soudal-fix-all-pr-18.php

https://www.abbuildingproducts.co.uk/soudal-fix-all-pr-18.php[/quote
Brill thanks Damien...one more question, Classic Black or the Hi-Tack Black?

 

[Damian]

Classic will give more time before setting than Hi Tac, which sets very quickly,
Classic will give time for minor adjustments.

 

[limecc]

There's an alternative Polyurethane sealant to Sikaflex called Tigerseal and it comes in black or white. Usually available from motor trade suppliers of paint and body panels it's used to affix spoilers and trims and the like. I used it to re-seal my van's windows which have a black frame. Before that I used the white in the shower cubicle to repair the tray it's that strong. About £13 a tube.

Edit: huh, £8 on Amazon I know where I'll go next time..
http://www.amazon.co.uk/U-Pol-Adhesive-Sealant-Superior-Quality/dp/B004QDPVZ6