Series 434

Perma-Shield H2S

Generic Type

Modified Aliphatic Amine Epoxy Mortar

Common Usage

A 100% solids, hybrid epoxy mortar designed for severe wastewater immersion and fume environments. Specifically formulated to withstand high levels of hydrogen sulfide gas (H_2_S), sulfuric acid (H_2_SO4), as well as other gases common to sewer exposures. Aggregate reinforcement provides additional resistance to abrasions and impacts.

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Recommended DFT

1/8 inch or 125 mils (3,125 microns) minimum.

Volume Solids

100% (mixed)

Number of Components

Three: Part A (Amine), Part B (Epoxy) and Part C (Aggregate)

Volatile Organic Compounds

EPA Method 24: 0.15 lbs/gallon (18 grams/litre)

Theoretical Coverage

1,604 mil sq ft/gal (39.4 m²/L at 25 microns). See APPLICATION for coverage rates.


Concrete: Self-priming or Series 201

Curing Time

Temperature To Topcoat To Place in Service Maximum Recoat
75°F (24°C) 8 hours 2 days 7 days
55°F (13°C) 12 hours 3 days 7 days

Note: Curing time will vary with surface temperature, air movement, humidity and film thickness. Note: If more than 7 days have elapsed between coats, the Series 434 coated surface must be mechanically abraded before topcoating.


0.06 lbs/gal solids


215, 217, 218


Series 435

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