FRP Tank Linings Inspection Report

Tank Name/Contents- Sodium Hypochlorite FRP Tank Linings

Table of Contents

1 Definitions 3

2 Scope and methods 3

3 Summary of Issues & Recommendations 4

4 Barcol Hardness Measurements (ASTM D 2583) 11

5 Appendix A: General Information on FRP 13

6 Appendix B: Conversion Curves for Barcol Values 18

7 Appendix C: Drawings, Name Plate, Labels 19

8 Appendix D: Additional Pictures from the inspection 21

9 Appendix E: Repair Methods to reline FRP Tank surfaces (i.e. replace 100 mil thick corrosion barrier) – a brief outline 23

10 Appendix F: Detailed Repair Procedure to reline FRP Tank surfaces 24

11 Appendix G: Severe Cases of Chemical permeation and resin degradation 27

12 Appendix H: In-place Dome Replacement with Structural MRM layers 31 Read more »

Steel Tank Repairs from the Foundation to the Roof

Sure, there are some common issues that come with steel tanks and tank linings that simply cannot be avoided. The key is to get tank repairs and  tank liner repairs right away- before small issues can grow into major problems. Read more »

San Francisco Water Tank Repairs

Commercial steel tanks have a limited lifespan. Whether it’s from corrosion, performance failure, or unexpected damage, steel tanks often require tank leak repair. Making repairs to steel tanks can be expensive, time-consuming and expensive, especially when steel tanks are buried underground. Whatever type of repairs your steel tank needs, consider fiber-reinforced plastic (FRP) as an efficient way to get back to normal. Here are three common types of San Francisco water tank repairs. Read more »

Water Tank liners  Using FRP for Tank Repairs & Protection

Steel and concrete tanks have always been used to store potable water and other liquids, which means corrosion has always been an issue. In the past, companies have tried to prevent corrosion and avoid costly water tank repairs by lining tanks with materials such as lead-based paint, vinyl, and coal tar epoxies. These days, most companies use fiberglass-reinforced polymer, or FRP, for their water tank liners. FRP was introduced in the 1950s as a way to repair tank bottoms that had corroded. The material could not only bridge gaps that had formed in the bottoms of tanks, but they provided protection from internal corrosion as well. This made FRP wraps useful in tanks that were being used to contain more caustic chemicals. Read more »

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Fiberglass Tank Repairs Made Simpler

According to the United States Environmental Protection Agency, approximately 587,000 underground storage tanks were being used to contain petroleum and other potentially hazardous materials as of March 2012. These tanks have an expected lifespan of 30 years, but many will only last around 20 years before they start to leak or show other signs of wear and tear  and require fiberglass tank repairs. The EPA began to implement strict regulations on underground storage tanks in 1984, and many of the tanks in use are double-walled to prevent leaks. Unfortunately, not even the most stringent regulations will prevent leaking and other signs of damage completely. Even the sturdiest and most secure water tank liners need to be repaired or replaced eventually, which used to always involve a complicated and costly excavation process. Read more »

Fiber-reinforced polymer (FRP) is a composite material that is composed of a polymer matrix reinforced with fibers. The composite material can be high-strength fibers like glass or carbon, or steel wires that are embedded in a polymer matrix. The FRP repairs use fibers to provide strength, and the polymer matrix serves as a binder, protects the fibers, and shares the load among the fibers. FRP composites have been in use in the United States for over 30 years. Today, FRP is widely used in many industries and in many applications including FRP ducts, FRP wraps, and FRP repairs.  Read more »

Above ground storage tanks are subject to corrosion. The bottoms of these storage tanks are especially vulnerable. Not only do soluble salts and chemicals settle to the bottom of the tank to damage the internal surface, but the external surface can be damaged by salt water, soil and other contaminants. The solution used to be replacing the bottom of the tank, which is expensive and time-consuming. Another option is to make FRP tank liner repairs, coating the tank with a fiberglass reinforced plastic lining (FRP) that is considered a secondary bottom. It’s almost like a tank liner, but it’s sturdy and durable to give you another 10 to 20 years out of your tank. Read more »

Fiberglass reinforced plastic – or FRP – is a state-of-the-art material that has countless industrial applications. FRP wraps are highly resistant to corrosion and can be used as liners storage tanks, while an FRP duct can withstand extreme temperatures with little trouble. FRP also requires little maintenance and is relatively inexpensive compared to steel and similar materials. This also means that FRP repairs are simple and easy to complete. Let’s take a look at some of the more common industrial uses of FRP. Read more »

Fiber Reinforced Plastic (FRP) is widely used in many industrial applications. FRP refers to a composite material, a plastic (polymer) matrix that has been reinforced with glass fibers which in combination result in a material that is exceptionally strong but also flexible. FRP materials are used in products and components that must be precisely engineered with tight tolerance limits, a low fatigue index, and high impact tolerance. FRP ducts, piping, and FRP tank liners are examples of excellent FRP applications. Read more »