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
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)
Bonding an FRP in Winter Conditions
The Problem
A client encountered a unique challenge at a refinery: they needed to remove an old pipe support which was to the pipe and repair the affected area. The repair had to be completed under cold ambient conditions (below 32F) while adhering to strict refinery safety and operational restrictions.
The Substrate
Steel
The Solution
Once the pipe support was removed, the area was cleaned and prepared for the application of Denso Protal 7125. This coating was chosen for its excellent performance in cold weather and its unique ability to act as an adhesive for bonding FRP pads to steel surfaces. A generous coat was applied to the pipe, the FRP pad was positioned in place, and then additional Denso Protal 7125 was applied over the pad to ensure full encapsulation and adhesion. The client could not have been happier with the end result.
