Case Studies
For over 20 years, USI has provided protective coatings and corrosion prevention products proven to protect our nations most critical infrastructure and industrial machinery. Along the way we have documented many projects and pain points we have been able to help our partners repair, protect and upgrade.
Most Recent Articles
Chemical Resistant Coatings
Chemical Resistant Coatings with Chris Mathson and Wayne Jobling from Resimac.
Protective systems for the energy and Oil and gas sectors
Wayne and Chris are product and technical managers. The default coating that they usually talk about is 511 UCEN.
511 UCEN:
Suitable for permanent immersion; chemical storage, and secondary containment: chemical bunds
Key Properties:
- Brush and roller application
- Plural feed airless spray
- High build, 2-coat application
Chemical Resistance:
- Hydrochloric acid (HCI) up to 38% concentration
- Sulfuric acid (H₂SO₄) up to 98% Concentration
- Sodium hydroxide/Caustic (NaOH) up to 50% concentration
- Alcohols, amines, fuels and solvents
Ensuring the correct system is selected
Ask Key Questions:
- What is the issue I am trying to solve? What are the substrates I need to coat?
- Steel, concrete, GRP, etc., a mixture of substrates?
- Are there inherent structural issues that require resolving prior to coating?
What are my operating conditions?
- Chemicals and concentrations
- Operating temperatures and pressures
What are my constraints?
- Time limitations to carry out the work/return to service
- Weather issues, i.e., ambient temp, moisture
- Limited ability to correctly clean and prepare the area
- How long do I need it to last for?
Once we have the proper recommendation and specification, all items need to reviewed and talked about. All the different Resimac coatings have specification sheets for you to follow. There are a range of solutions. What is the problem, and what are you trying to fix? There are solutions.
When it comes to chemical resistance, the Resimac coatings can be applied to other areas that have a chemical exposure. (Short-term exposure)
Questions:
- What are some different factors that might change a surface preparation requirement?
- Can these coatings be spray applied, or are they all roller applied?
Special Guest Lynn Hurdman from Peat Sorb
Welcome to another USI Tech Talk, as we welcome Lynn Hurdman from Peat Sorb. She is the expert in her industry.
Lynn is from Canada, Peat Sorb is a Canadian company, and there isn’t a chemical or liquid that Peat Sorb can’t handle. There is no response, no incompatibility, and no health problems at all. Peat Sorb was the only one that had a net zero in the atmosphere, according to awards from the USDA. All government agencies and contractors must buy Peat Sorb.
Check out some of the questions that were asked during the #TechTalk:
- About how long with the traditional peat sorb float on water while it’s absorbing a hydrocarbon?
- Can you talk about the Michigan State University’s Botany class and the studies that they did with oil on a hot sod field?
- Can you talk about Certification’s as far as Coast Guard and the EPA?
- What kind of acids does Peat Sorb absorb?
- What is the disposal protocol with used peat sorb with hydrocarbons?
- Under what conditions does peat sorb underperform or fail?
- Fire Departments, and they use a clay-based product, but in talking with them and trying to show the benefits of peat sorb, their questions are “What do I do on those windy days”
Resimac High Temperature Resistance Coatings
Key considerations before selecting a high-temperature coating
Environmental Use:
- Is this an external protective coating or an internal lining?
- Will the system be subject to CUI (Corrosion Under Insulation) risks?
Chemical Exposure:
- Is there exposure to water, hydrocarbons, acids or alkalis?
- What type of chemicals are present, and at what concentration (ppm)?
- Are they continuous exposures or occasional contact
Temperature Profile:
- What is the constant operating temperature?
- What are the intermittent or peak temperatures?
- How often will the equipment cycle between hot and cold?
Mechanical & Process Conditions:
- Is there thermal shock or rapid temperature change?
- Is the coating subject to abrasion, erosion or impact?
- Will there be pressurized steam or immersion service?
Engineering Repair Metals
- Resistant to dry heat up to 464°F and immersion up to 356°F
- High build application up to 1 inch without slumping
- No shrinkage, distortion, or warping during or after curing
- Resists high temperature fluid flow environments up to 356°F immersion or wet heat and 464°F dry heat
- Suitable for hydrocarbon and aqueous immersion
- Steam-out testing at 428°F / 220°C for 100 hours with no blistering
- Cures at 212-464°$ with no shutdown required
- Solvent-free and surface-tolerant
- Excellent corrosion protection at elevated temperatures
- Single-component, heat-activated epoxy novolac
Resichem 560 Thermal Barrier XF
- Prevents corrosion under insulation (CUI) for long-term durability
- Insulative epoxy coating that minimizes heat transfer & energy loss
- Presents condensation build-up to reduce moisture related damage
Duromar 4300 – High Performance Lining
- Abrasion-resistant, trowel applied
- Temperatures up to 450°F
- Resists high-temperature fluid flow environments up to 265°F wet & 464°F dry-heat
- Suitable for hydrocarbon and aqueous immersion
- Resists high-temperature fluid flow environments uo to 230°F wet and 464°F dry heat
- Withstands continuous immersion in acidic conditions
A unique high-build single-package inert multi polymeric matrix coating designed to provide heat stability and withstand severe cyclic conditions up to 1200°F. It is an excellent choice for coating under insulation (CUI), stacks, chemical plant components, refineries and other areas that require corrosion protection and see elevated temperatures up to 1200°F and -300°F or cryogenic temperatures
Questions asked during the Tech Talk:
- What type of surface prep is required? (8:44)
- How easy is it to repair or to recoat? (10:37)
