China wholesale CV-709 silicone sealant for PV moudels to El Salvador Importers
Short Description:
Description CV709 is a high-performance silicone sealant, one-component oxime type room temperature curing silicone rubber, has excellent weather resistance, high thixotropy, after curing for solar components involved in the base material has good caking property, by TUV for environmental requirements of the ROHS, UL E339949 Key Features 1. 100% silicone 2. No sag 3. high thixotropy 4. Water & weatherproof 5. For solar components involved in the base material has good bonding Basic Ap...
As a result of ours specialty and service consciousness, our company has won a good reputation among customers all over the world for China wholesale CV-709 silicone sealant for PV moudels to El Salvador Importers, We warmly welcome friends from all walks of life to seek mutual cooperation and create a more brilliant and splendid tomorrow.
Description
CV709 is a high-performance silicone sealant, one-component oxime type room temperature curing silicone rubber, has excellent weather resistance, high thixotropy, after curing for solar components involved in the base material has good caking property, by TUV for environmental requirements of the ROHS, UL E339949
Key Features
1. 100% silicone
2. No sag
3. high thixotropy
4. Water & weatherproof
5. For solar components involved in the base material has good bonding
Basic Application
1.Solar module frame seal
2.The adhesive of the solar energy back to the terminal block
3.General industrial assembly with seal
Technical data sheet
| Test standard | Test project | Unit | value |
| Before curing——25℃，50%R.H. | |||
| specific gravity | g/ml | 1.34-1.40 | |
| GB13477 | Operating time | min | 15 |
| GB13477 | surface drying time（25℃，50%R.H.） | min | 40-60 |
| 3 days after curing——25℃，50%R.H. | |||
| Temperature range | ℃ | -55~200 | |
| GB13477 | Durometer Hardness | Shore A | 40~55 |
| The ultimate tensile strength | Mpa | ≥2 | |
| GB13477 | Breaking elongation | % | 300-600 |
| Aluminum bonding shear strength | Mpa | ≥1.5 | |
| Electrical properties | |||
| Breakdown voltage | Kv/mm | ≥20 | |
| Volume resistance | ohm.cm | 9E+14 | |
| Dielectric constant | 3.1@50Hz | ||
Certification
UL E339949; TUV
Color
Black, White
Package
300ml in cartridge * 24 per box, 500ml in sausage *20 per box
Shelf life
12 months
Note
If you want the TDS or MSDS or other details, please contact with our sales person.
After our extended snowbird trip down south I like to go over our Cougar fifth wheel trailer with a fine tooth comb looking for defects. This spring I discovered a small leaky seal in one corner of the slide out room. Luckily it hadn’t had a chance to progress too far. Still, though, it had weakened a small area of the floorboard.
I found the leak was caused by a small opening in the external silicone sealant. Silicone caulking will dry out over time leaving openings for water to penetrate. Water had seeped in over time and wetted the floor board making it a bit spongy. Given enough time I’m sure it would have rotted away completely and led to a structural failure of the slide room. Glad I caught it early!
To repair the problem, I first removed the external flange and scraped away the old silicone caulk using a plastic chisel, scotch pad, and my thumbnail. To help loosen up the old caulking, I use a product called “Goo Gone Caulk Remover.” With around a 1/2 hour of effort, I was able to get rid of pretty well all the old silicone. Extremely important as nothing will stick to silicone.
Next, I drove several 1 1/4 inch Teks Screws through the affected board area and into an aluminum beam above it. I made sure the screw was countersunk into the wood as not to catch when the slide is drawn in.
Finally, I reattached the flange and resealed it with a product called SikaFlex 291, a high-end marine grade sealant. I smoothed out the SikaFlex and made a smooth seam using a special caulking tool. The tool comes with multi-sized flexible trowls. Then cleaned up the overflow bits and let cure.
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