- Designed for wastewater storage only - not treatment
- Units have inner lining suitable for storage of chemical waste such as blue chemical waste from touring caravans - also known as Elsan waste. Full technical specification below.
- Capacities from 1,000 to 275,000 litres
- Available with class 2 shell for concrete surround or class 1 shell for granular backfill
- Standard silage tanks are designed for installation of not more than 1 metre below finished ground level. Some models can be provided for deeper inverts
- No maintenance required other than normal routine
- Easy to install
- Cesspools tanks also available
Crystic199 is an isophthalic polyester resin. It is recommended for use in high performance applications, such as the aircraft industry, where superior thermal and electrical properties are required. Fully cured laminates made with Crystic 199 have excellent chemical and heat resistance. They can withstand long periods (1 year) at temperatures up to 150ºC, and shorter periods at temperatures up to 200ºC, with no serious loss of properties.
Crystic 199 meets the requirements of BS 3532 : 1990 Type C, and is approved to DTD 5537 and 5549, Class MC and EC.
Crystic199 can be used in both hot and cold curing formulations.
The recommended catalyst is Catalyst Powder B (or Lucidol CH50) which should be added at 2% into the resin. The catalyst must be thoroughly dispersed into the resin, and the catalysed mix will remain usable for approximately 6 days at workshop temperature (18ºC - 20ºC). Cure will take place at temperatures between 80ºC and 130ºC, but for most applications 120ºC will be satisfactory. For optimum heat resistant properties, the laminate should be cured at a temperature of 80ºC - 100ºC for half an hour to one hour, and then post cured.
Crystic 199 should be allowed to attain workshop temperature (18ºC-20ºC) before use. It requires the addition of a catalyst and an accelerator to start the curing reaction.
N.B. Catalyst and accelerator must not be mixed directly together, as they can react with explosive violence.
The recommended catalyst is Catalyst Paste H (or Cyclonox BT50) which should be added at 4% into the resin. If a liquid catalyst is preferred, 2% Catalyst M (or Butanox M50) may be substituted for 4% Catalyst Paste H. The catalyst must be thoroughly dispersed into the resin and this mix will remain usable for approximately 8 hours at workshop temperature (18ºC - 20ºC). Shortly before use, the correct amount of Accelerator E should be stirred into the catalysed resin. The amount of Accelerator E can be approximately determined from the table overleaf.
POT LIFE Parts of Accelerator E to
100 parts of Catalysed Resin
Pot life in minutes at 20ºC
For use on large vertical or inclined surfaces, up to 20% of Crystic Pregel 27 may be added to Crystic 199 to give it thixotropic properties. Fillers and pigments can adversely affect the heat, chemical and weather resistance of Crystic 199, so should not be used if optimum properties are required. Customers should satisfy themselves that any additions made will give the performance required.
POST CURING Hot Cured Laminates
The post curing temperature will depend on the temperature which the laminate is to withstand. It should be increased in increments of 20ºC to the final operating temperature, with a minimum offive hours post curing time at each 20ºC increase.
POST CURING Cold Cured Laminates
For optimum heat resistant properties, the laminate should be cured for seven days at workshop temperature (18ºC - 20ºC). The post curing temperature should be increased in increments of 20ºC, to that which the laminate is to withstand. A minimum of five hours post curing time should be given at each 20ºC increase.
Capacity in litres
For more information, installation instructions and prices, please call 01773 767611.