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 »

san francisco water tank repair

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 »

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FRP Tank Repairs, Linings and Now FRP Rebar for Concrete Strengthening

Fiber-reinforced plastics or polymers (FRPs) have many industrial uses. We’ve used it in steel tank repairs, concrete reinforcement of old buildings, and tanker and trailer linings. Steel is especially prone to corrosion, but concrete, too, can fail under harsh conditions such as high salinity or high temperatures. It’s forced the industry to look for other options to maintain infrastructure. Read more »

frp ducts, frp repairs

Why Corrosive Environments Are Perfect for FRP Duct Applications

“Corrosion” is not a word that a contractor, building owner, or business owner wants to hear. Corrosion means that a chemical reaction has taken place which has damaged or destroyed a structure or some of its components. FRP wraps, FRP duct, and FRP repairs are good ways to prevent or remedy the effects of corrosion.  Read more »

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Why Choose FRP for Water Tank Liners and Tank Repairs

Metal storage tanks are extremely susceptible to corrosion, and there will come a time when they will need to be repaired or replaced. Replacing a storage tank is sometimes unavoidable, but it is also a much more costly option. In most cases, it’s best to stick with water tank repair unless the bottom of a tank is no longer salvageable. This usually involves installing new water tank liners, which have evolved over the years to be far stronger and more resistant to heat and corrosion than they’ve been in the past. This is largely thanks to FRP. Read more »

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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 »