What information do you need to choose a lining?
Linings protect surfaces in immersion service, such as tanks, vessels, sumps and trenches, so the chemical and temperature details matter most. RCC (Rema Corrosion Control) uses the checklist below to recommend a lining. Gather as much of it as you can before requesting a recommendation.
1. Chemical solutions present
- List each chemical and its percentage
- pH, only as a last resort
2. Temperature
- Normal operating temperature
- Upset temperature: how long does it last, and how often does it happen?
3. Substrate
What the lining goes on, for example steel or concrete.
4. Finish required on the surface of the lining
5. Jobsite conditions
- Indoors or outdoors
- Time of year installed
6. If it is an old tank, what has it been used for in the past?
7. Physical abuse
Impact, abrasion, agitators or anything else that will wear on the lining.
8. Budget constraints
9. Past history
What has been used before and how it performed.
Why is pH only a last resort?
pH tells you whether a solution is acidic or alkaline, but not which chemical is present. Two solutions with the same pH can attack a lining very differently, and oxidizers and solvents may not show up in pH at all. A list of chemicals and concentrations gives a far more reliable recommendation.
Why do upset temperatures and tank history matter?
Short temperature spikes can damage a lining that handles normal conditions easily, so the duration and frequency of upsets help set the right material. An old tank may also hold chemicals absorbed in the substrate from past service, which affects surface preparation and lining choice.
How do I get a lining recommendation?
Send PCT your answers to the checklist and we will work with RCC to recommend a lining. Request a quote, or see RCC and our corrosion protection products.