food grade silicone or sealant....
- Thread starter vittorio
- Start date
Help Support Australia & New Zealand Homebrewing Forum:
dicko
Boston Bay Brewery
- Joined
- 11/1/04
- Messages
- 3,393
- Reaction score
- 577
The silicon that is used on fish aquariums is food safe.
I don't know the number or brand but I did buy some many years ago.
Edit:
Here is one I found with Google
http://www.dap.com/product_details.aspx?BrandID=67&SubcatID=27
I don't know the number or brand but I did buy some many years ago.
Edit:
Here is one I found with Google
http://www.dap.com/product_details.aspx?BrandID=67&SubcatID=27
Adr_0
Gear Bod
- Joined
- 4/4/13
- Messages
- 1,776
- Reaction score
- 684
Silastic 732 or 748 is the pick - food grade and good to 230°C.
The Selleys Enginnering 401 is similar, but takes a week to cure properly,while the Silastic products take 2-3 days.
The main thing with the food gradedness is the curing:make absolutely sure that it has completely cured. This is particularly important with thicker beads. Advice from Dow Corning said all of their silicones are safe for use in food applications, but only the 747 has been certified as such (ie they have paid money for the certification).
If a silicone is suitable for water and the temperature range, the only outstanding thing really is making sure the chemicals that come off during curing are compatible with your material (e.g. Copper maybe not the best with acid cure) and making absolutely sure it has fully cured before putting food/water near it. Ventilation and time is the key here.
The Selleys Enginnering 401 is similar, but takes a week to cure properly,while the Silastic products take 2-3 days.
The main thing with the food gradedness is the curing:make absolutely sure that it has completely cured. This is particularly important with thicker beads. Advice from Dow Corning said all of their silicones are safe for use in food applications, but only the 747 has been certified as such (ie they have paid money for the certification).
If a silicone is suitable for water and the temperature range, the only outstanding thing really is making sure the chemicals that come off during curing are compatible with your material (e.g. Copper maybe not the best with acid cure) and making absolutely sure it has fully cured before putting food/water near it. Ventilation and time is the key here.
Feldon
caveat brasiator
- Joined
- 13/1/09
- Messages
- 1,722
- Reaction score
- 1,006
$19.94
Food grade silicone.
Colour: Aluminium Grey, suitable for use with stainless steel. High temperature formula heat resistant to 200ºC (400ºF). Premium grade. Air cures overnight. Tack-free in 15 minutes. Uses: Waterproof adhesive bonds better than generic sealants. Won't peel. Tube volume: 304ml
http://www.crh.com.au/products/fabrication-supplies/sealants/kason-sil-kason-food-grade-silicone/
Similar threads
