Corrosion Resistance Guide - Strongwell

1 1 INDUSTRIAL PRODUCTSCORROSION Resistance GUIDE2 The cover photo shows severe, short-term corrosive effects of 37% sulfuric acid on various materials. All bar samples originally measured 6" long x 1/4" thick x 1/2" wide. Products depicted from left to right are carbon steel, EXTREN Series 625, aluminum, and EXTREN Series 525. The steel base has deteriorated significantly below the solution line and incurred atmospheric Corrosion . The aluminum also deteriorated and developed corrosive aluminum sulfite deposits. Both EXTREN samples were not affected by the sulfuric acid Resin selection Guide for Strongwell Industrial Product Lines:NOTE: Information in this Corrosion Guide is specifically intended for the products manufactured by Strongwell and may have little correspondence to other pultruded or molded products.

2 Strongwell Corrosion Resistance GUIDEFIBERGLASS STRUCTURAL SHAPES AND PLATEPULTRUDED FIBERGLASS GRATINGMOLDED FIBERGLASS GRATINGPULTRUDED FIBERGLASS GRATINGFIBERGLASS STUDS & NUTSFIBERGLASS FOAM AND HOLLOW CORE BUILDING PANELSCUSTOM ENGINEERING AND FABRICATIONINDUSTRIAL FIBERGLASS RAILING SYSTEMFIBERGLASS GRITTED PLATEFIBERGLASS BUILDING PANEL SYSTEMINTERLOCKING DECKING SYSTEM*COMPOSOLITE is a registered trademark of Maunsell Structural Plastics, Ltd. and used by Strongwell Corporation pursuant to TO USE THIS GUIDES trongwell believes the information and recommendations herein to be accurate and reliable. Any questionable application should be preceded by a small sample or prototype evaluation in the actual chemical environment.

3 Corrosive conditions not specifically discussed in this Guide (including lower concentrations than those tested) should refer to Strongwell s Customer Relations Department for an evaluation of the individual specific recommendations in this Corrosion Guide are for immersion applications where good fabrication procedures have been followed. The pH of the solution can be used as an approximate indication of Corrosion performance. A pH > is caustic and will typically require a vinyl ester composite for immersion following definitions will aid readers using this Room Temperature ( 100 F)TP ThermoplasticR ResistantNR Not ResistantC Concern (Indicates data is inconclusive.)

4 Customer is advised to confirm the Corrosion Resistance in their applications with pre-shipment sample.)EXTREN 500/525 PolyesterEXTREN 600/625 Vinyl EsterDURAGRATE VE Vinyl Ester ISO Isophthalic Polyester (Premium Polyester)Note: Temperature data is not necessarily the maximum service temperature; it is the upper temperature at which a resin has been tested, used or evaluated. Other temperatures can be reviewed Considerations: DURAGRATE - Corrosion Resistance data for polyester resins is applicable only to the ISO, premium (isophthalic) polyester resin system. DURASHIELD - The cut ends must be sealed with an epoxy system for polyester and a vinyl ester system for the vinyl ester DURASHIELD such that there is no possibility of chemical intrusion.

5 Fiberglass Structures - The standard components of Strongwell FIBERGLASS STRUCTURES are shown in this Corrosion Resistance Guide . Fabrication procedures similar to those in Strongwell s EXTREN Fabrication and Repair Manual should be followed to obtain the Corrosion Resistance stated in this Guide . Concrete - Polyester resin is acceptable when pultruded FRP shapes are used as a stay in place (SIP) form. For concrete installations where long-term structural integrity is required, vinyl ester resin should be used. A spill/splash application can be considered separately if the spill/splash can be netralized within one (1) ESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE (< 100OF)VINYL ESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE SAFRAILTM160 OFPOLYESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE (< 100OF)

6 POLYESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE SAFRAILTM150 OFAA cetic Acid 0-25%RRRRAA cetic Acid 0-25%RRRRR125 Acetic Acid 25-50%RRRNRA cetic Acid 25-50%RRRRRNRA cetic AnhydrideNRNRNRNRA cetic AnhydrideNRNRNRNRNRNRA cetoneNRNRNRNRA cetoneNRNRNRNRNRNRA crylonitrileNRNRNRNRA crylonitrileNRNRNRNRNRNRA lcohol, ButylRNRNRNRA lcohol, ButylRNRRNRNRNRA lcohol, Ethyl 10%R120 NRNRA lcohol, Ethyl 10%R150R120 NRNRA lcohol, Ethyl 100%NRNRNRNRA lcohol, Ethyl 100%NRNRNRNRNRNRA lcohol, Isopropyl 10%R150 NRNRA lcohol, Isopropyl 10%R150R150 NRNRA lcohol, Isopropyl 100%RNRNRNRA lcohol, Isopropyl 100%RNRRNRNRNRA lcohol, Methyl 10%RNRNRNRA lcohol, Methyl 10%RNRRNRNRNRA lcohol, Methyl 100%NRNRNRNRA lcohol, Methyl 100%NRNRNRNRNRNRA lcohol, Methyl IsobutylR120 NRNRA lcohol, Methyl IsobutylR120R120 NRNRA lcohol, Secondary ButylR150 NRNRA lcohol, Secondary ButylR150R150 NRNRAlumR120 RRAlumR120R120 NRNRA luminum ChlorideR120 RNRA luminum ChlorideR120R120 RNRA luminum Hydroxide 5%R120 NRNRA luminum Hydroxide 5%R120R120 NRNRA luminum NitrateR120 RNRA luminum NitrateR120R120 NRNRA luminum Potassium SulfateR120 RNRA luminum Potassium SulfateR120R120 NRNRA mmonia, Aqueous 0-10%RNRNRNRA mmonia, Aqueous 0-10%RNRRNRNRNRA mmonia, GasRNRNRNRA mmonia.

7 GasRNRRNRNRNRA mmonium BicarbonateR120 RNRA mmonium BicarbonateR120R120 RNRA mmonium BisulfiteR120 RNRA mmonium BisulfiteRNRR120 RNRA mmonium Carbonate 10%R120 NRNRA mmonium Carbonate 10%RNRR120 NRNRA mmonium CitrateR120 RNRA mmonium CitrateR120R120 RNRA mmonium Hydroxide 5%R120 NRNRA mmonium Hydroxide 5%RNRR120 NRNRA mmonium Hydroxide 10%R120 NRNRA mmonium Hydroxide 10%RNRR120 NRNRA mmonium Hydroxide 20%RNRNRNRA mmonium Hydroxide 20%RNRRNRNRNRA mmonium NitrateRRRRA mmonium NitrateRRRRRRA mmonium PersulfateR120 NRNRA mmonium PersulfateRNRR120 NRNRA mmonium PhosphateR120 NRNRA mmonium PhosphateR120R120 NRNRA mmonium SulfateRRRRA mmonium SulfateRRRRRRA rsenious AcidRRRNRA rsenious AcidRRRRRNRBB arium AcetateRRNRNRBB arium AcetateR120 RRNRNRB arium CarbonateRRRNRB arium CarbonateRRRRRNRB arium ChlorideRRR120 Barium ChlorideRRRRR120 Barium HydroxideR120 NRNRB arium HydroxideRNRR120 NRNRB arium SulfateRRRRB arium SulfateRRRRRRB arium SulfideRRNRNRB arium SulfideR120 RRNRNRBeerR120 RNRBeerR120R120 RNRB enzeneNRNRNRNRB enzeneNRNRNRNRNRNR5% Benzene in KeroseneRNRNRNR5% Benzene in KeroseneRNRRNRNRNRB enzene Sulfonic Acid 30%RRNRNRB enzene Sulfonic Acid 30%RRRRNRNR7 CHEMICAL ENVIRONMENTFIBREBOLT SYSTEM (< 100 F)FIBREBOLT SYSTEM 150 FDURAGRATE MOLDED GRATINGVINYL ESTER (< 100 F)VINYL ESTER 160 FPREMIUM ISOPHTHALIC POLYESTER (<100 F)

8 PREMIUM ISOPHTHALIC POLYESTER 150 FAAcetic Acid 0-25%RRRRAA cetic Acid 0-25%RRRRR125 Acetic Acid 25-50%RRRNRA cetic Acid 25-50%RRRRRNRA cetic AnhydrideNRNRNRNRA cetic AnhydrideNRNRNRNRNRNRA cetoneNRNRNRNRA cetoneNRNRNRNRNRNRA crylonitrileNRNRNRNRA crylonitrileNRNRNRNRNRNRA lcohol, ButylRNRNRNRA lcohol, ButylRNRRNRNRNRA lcohol, Ethyl 10%R120 NRNRA lcohol, Ethyl 10%R150R120 NRNRA lcohol, Ethyl 100%NRNRNRNRA lcohol, Ethyl 100%NRNRNRNRNRNRA lcohol, Isopropyl 10%R150 NRNRA lcohol, Isopropyl 10%R150R150 NRNRA lcohol, Isopropyl 100%RNRNRNRA lcohol, Isopropyl 100%RNRRNRNRNRA lcohol, Methyl 10%RNRNRNRA lcohol, Methyl 10%RNRRNRNRNRA lcohol, Methyl 100%NRNRNRNRA lcohol, Methyl 100%NRNRNRNRNRNRA lcohol, Methyl IsobutylR120 NRNRA lcohol, Methyl IsobutylR120R120 NRNRA lcohol, Secondary ButylR150 NRNRA lcohol, Secondary ButylR150R150 NRNRAlumR120 RRAlumR120R120 NRNRA luminum ChlorideR120 RNRA luminum ChlorideR120R120 RNRA luminum Hydroxide 5%R120 NRNRA luminum Hydroxide 5%R120R120 NRNRA luminum NitrateR120 RNRA luminum NitrateR120R120 NRNRA luminum Potassium SulfateR120 RNRA luminum Potassium SulfateR120R120 NRNRA mmonia, Aqueous 0-10%RNRNRNRA mmonia, Aqueous 0-10%RNRRNRNRNRA mmonia, GasRNRNRNRA mmonia.

9 GasRNRRNRNRNRA mmonium BicarbonateR120 RNRA mmonium BicarbonateR120R120 RNRA mmonium BisulfiteR120 RNRA mmonium BisulfiteRNRR120 RNRA mmonium Carbonate 10%R120 NRNRA mmonium Carbonate 10%RNRR120 NRNRA mmonium CitrateR120 RNRA mmonium CitrateR120R120 RNRA mmonium Hydroxide 5%R120 NRNRA mmonium Hydroxide 5%RNRR120 NRNRA mmonium Hydroxide 10%R120 NRNRA mmonium Hydroxide 10%RNRR120 NRNRA mmonium Hydroxide 20%RNRNRNRA mmonium Hydroxide 20%RNRRNRNRNRA mmonium NitrateRRRRA mmonium NitrateRRRRRRA mmonium PersulfateR120 NRNRA mmonium PersulfateRNRR120 NRNRA mmonium PhosphateR120 NRNRA mmonium PhosphateR120R120 NRNRA mmonium SulfateRRRRA mmonium SulfateRRRRRRA rsenious AcidRRRNRA rsenious AcidRRRRRNRBB arium AcetateRRNRNRBB arium AcetateR120 RRNRNRB arium CarbonateRRRNRB arium CarbonateRRRRRNRB arium ChlorideRRR120 Barium ChlorideRRRRR120 Barium HydroxideR120 NRNRB arium HydroxideRNRR120 NRNRB arium SulfateRRRRB arium SulfateRRRRRRB arium SulfideRRNRNRB arium SulfideR120 RRNRNRBeerR120 RNRBeerR120R120 RNRB enzeneNRNRNRNRB enzeneNRNRNRNRNRNR5% Benzene in KeroseneRNRNRNR5% Benzene in KeroseneRNRRNRNRNRB enzene Sulfonic Acid 30%RRNRNRB enzene Sulfonic Acid 30%RRRRNRNR8 CHEMICALENVIRONMENTVINYL ESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE (< 100OF)

10 VINYL ESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE SAFRAILTM160 OFPOLYESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE (< 100OF)POLYESTERCOMPOSOLITE EXTREN DURADEK DURAGRID DURASHIELD SAFPLANK SAFPLATE SAFRAILTM150 OFBB enzoic AcidRRRNRBB enzoic AcidRRRRRNRO-Benzoyl Benzoic AcidRRNRNRO-Benzoyl Benzoic AcidRRRRNRNRB enzyl AlcoholRNRNRNRB enzyl AlcoholRNRRNRNRNRB enzyl ChlorideNRNRNRNRB enzyl ChlorideNRNRNRNRNRNRB rass Plating Solution: 3% Copper Cyanide 6% Sodium Cyanide 1% Zinc Cyanide 3% Sodium CarbonateR120 NRNRB rass Plating Solution: 3% Copper Cyanide 6% Sodium Cyanide 1% Zinc Cyanide 3% Sodium CarbonateRRRRNRNRB utyl AcetateNRNRNRNRB utyl AcetateNRNRNRNRNRNRB utylene GlycolRRRRB utylene GlycolRRRRRRB utyric Acid 0-50%RRRNRB utyric Acid 0-50%RRRRRNRCC admium ChlorideRRRNRCC admium ChlorideRRRRRNRC admium Cyanide Plating Solution: 3% Cadmium Oxide, 6% Sodium Cyanide 1% Caustic SodaR120 NRNRC admium Cyanide Plating Solution.