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Application Procedures

and Performance

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l Two epoxy components.

l

100% solid epoxy.l 19.4% Flexibility.

l 1 year & 2 years shelf life

components.

l

Resists fire up 1100°Cl Corrosion resistance.

l Acids & Solvent

Resistance.

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 Agenda Agendal Surface Preparation (blasting)

l Primer 

l

Mesh Installationl Spraying

l Troweling

l Film Build

l Surface Appearancel Film Thickness Measurement

l Topcoating

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OverviewOverviewl Durable Epoxy Coating

l F-l-e-x-i-b-l-e (19% Elongation)

l Contractor Friendly

l Solvent Free Airless Application

l Excellent Adhesion

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SURFACE PREPARATION

SSPC-SP6 (NACE No.6)------------------- CleanlinessGrade fine to Medium G, 1.5-2.0 mil------- Roughness

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Primer Application

• Epoxy 2.0 mil

• Zinc Epoxy 2.5 mil

+ Epoxy Tie 1.0 mil

• Thermal Sprayed

Aluminum 8.0 mil

• + Sealer 1.0 mil

Primer 

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Steel Mesh Installation (Round Sections)

Install steel mesh direct to primed steel

• Install galvanized hex mesh

• Butt join mesh

• Lace or tie together 

• Mesh shall be tight

Lace Detail Tie Wire Detail

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Steel Mesh Installation (“I” Sections)

• Cut and pre-bend ½ x ½” x 19 gage galvanized mesh to fit steel sections.

• Install mesh sections to flange tips after primer has cured, butt together.

• Two inch maximum gap.

• Use steel for UL1709 ratings >1 hour 

Mesh edge piece

cross section

3-4

inch

Flange thickness

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Mastic Pump (Single Pump)Mastic Pump (Single Pump)

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Dual PumpsDual Pumps

l 1 Spray-Equip

Dual Pump

l AirTech Dual

Pump

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Apply Pitt-Char XP ® Coating to Steel Mesh

Plural Airless Application• Apply 5mm (0.2”) per coat

• No Airborne Solvents

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Apply Pitt-Char XP ® Coating to Primed Steel To half 

thickness for fiberglass meshPlural Airless Application

• Apply 5mm (0.2”) per coat

• No Airborne Solvents

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Trowel Coating.Trowel Coating.• Eliminates Irregularities

• Ensures Good Wetting

• Consistent Thickness

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Fiberglass/Fabric MeshFiberglass/Fabric Mesh

InstallationInstallation

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Mesh Installation

• Fabric or Fiberglass Mesh

• Cuts with shears

• Install in Wet Coating

• Roll Mesh 100%

• Eliminate Wrinkles,Bubbles, Voids

• Overlap Seams 50mm +

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Apply Remaining Coats of  Pitt-Char XP ®

Coating to achieve Specified DFT• Shore A, 50 or D, 25

 before recoat

• Recoat within 24 hours

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Trowel Coating

• Eliminates Irregularities

• Ensures Good Wetting

• Consistent Thickness

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Solvent

Surface Finish

• Roll with Short Nap Cover 

• Use Approved Solvent

• Use Minimal Solvent

• Achieve Desired Finish per Reference Sample

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Measure Film Thickness

• Average Thickness or 

• Specified Thickness

• Every 4-6 Linear Feet(Structural Members)

• Every 100 Ft²

(Large Flat Areas)

0.2”0.25”

1 2 3 4 5 6 7 8 9 10

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 Acceptable Acceptable SprayedSprayed FinishFinish

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 Acceptable Acceptable RolledRolled FinishFinish

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Topcoating (If Required)

Safety Colors• Aesthetics

• Epoxy or Polyurethane

2-4 mil