Series 109


Generic Type

Low Stress Penetrating Epoxy Sealer

Common Usage

Series 109 ProBond is a lower-temperature curing, thin-film, low-stress, epoxy designed to adhere to a multitude of substrates, including old finishes, and is frequently used as an overcoating primer. Series 109 is solvent-free and is applied at a low film thickness to reduce stress and weight on old tightly adhered coatings creating a foundation to accept high-performance epoxy and polyurethane finishes. Also used, when specified, as the primer under Lavacrete polymer concrete epoxy toppings. Note: Adhesion analysis of old finishes and test patches are recommended before overcoating a structure. Reference the latest version of Tnemec Technical Bulletin 98-10 for more information.

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Series N69, L69, V69, 132, 133, 135, 138, 469, 470, 479, 1028, 1094, 1095, 1096. Note: When topcoating Series 109, a maximum recoat time applies: at 90°F (32°C), 15 days, at 75°F (24°C), 30 days, at 50°F (10°C), 30 days. Note: The following maximum recoat time applies: Series 469, 470, 479, 72 hours; Series 1028, 15 days.

Number of Components

Two: Part A and Part B

Volatile Organic Compounds

Unthinned: 0.15 lbs/gallon (18 grams/litre)
Thinned 2.5% (No. 2 Thinner): 0.32 lbs/gallon (38 grams/litre)
Thinned 5% (No. 2 Thinner): 0.48 lbs/gallon (58 grams/litre)



Volume Solids

100% (mixed)

Curing Time

Temperature To Handle To Topcoat
75°F (24°C) 18-24 hours 8-12 hours
50°F (10°C) 36-48 hours 24-36 hours
40°F (4°C) 48-72 hours 36-48 hours

ProBond may be topcoated as soon as it has become dry to touch or up to the maximum time to topcoat as listed above. The early-stage application does not denote or imply that the coating is hard enough for handling or moving, or that it has sufficient resistance to staging or equipment damage.

Recommended DFT

1.5 to 2.0 mils (40 to 50 microns)

Theoretical Coverage

1,584 sq ft/gal (38.8 m²/L at 25 microns). See APPLICATION for coverage rates.

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