Series 691
Siloxilon
Generic Type
Solvent-Based Polysiloxane (epoxy siloxane hybrid)
Common Usage
An advanced technology finish coat combining low VOC with exceptional performance. Offers superior color and gloss retention for long-term aesthetics on exterior applications to steel, concrete, and other substrates in commercial, industrial, and marine environments. The durable film stands up to abrasion and exterior weathering. Direct-to-metal capability allows for a labor-saving, high-build, single-coat application.
Special Qualifications
Series 691 meets the requirements of LEED Low-Emitting Materials, Collaborative for High Performance Schools — Paints & Coatings, WELL Building Standard — VOC Restrictions, and Living Building Challenge — Healthy Interior Performance. Contact your Tnemec representative for more information.
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Primers
Self-priming or Series 1, 66, L69, N69, N69F, V69, 90-75, 90-97, 91-H2O, 93-H2O, 94-H2O, 98-H2O, 135, 394. Note: The following maximum recoat times apply: Series L69F, N69F, 135 (interior), @7 days@; Series 1, 66, L69, N69, V69, 90-97, 91-H2O, 93-H2O, 94-H2O, 98-H2O, 135 (exterior), 394, 691, @1 month@.
Curing Time
| Temperature | To Touch | To Handle |
|---|---|---|
| 90°F (32°C) | 1 1/2 hours | 4 hours |
| 75°F (24°C) | 2 hours | 6 hours |
| 55°F (13°C) | 3-4 hours | 14-16 hours |
| 40°F (4°C) | 5-6 hours | 28-30 hours |
Curing time varies with surface temperature, air movement, humidity, and film thickness. Reference APPLICATION for ambient humidity ranges. Note: When recoating Series 691 with itself, the minimum recoat time is 16-24 hours at 70°F (21°C).
HAPS
Unthinned: 0.73 lbs/gal solids
Thinned 5% (Max) (No. 2 Thinner): 1.20 lbs/gal solids
Finish
Semi-gloss
Topcoats
Series 691. Note: The following maximum recoat times apply: Series 691, @1 month@.
Volatile Organic Compounds
Unthinned: 1.07 lbs/gallon (128 grams/litre)
Thinned 5% (Max) (No. 2 Thinner): 1.38 lbs/gallon (166 grams/litre)
Volume Solids
85.0 ± 2.0% (mixed) †
Recommended DFT
Topcoat Service: 3.0 to 7.0 mils (75 to 180 microns) per coat.
Direct-to-Metal; over Zinc or MIO-Zinc: 5.0 to 7.0 mils (130 to 180 microns).
Note: Number of coats and thickness requirements will vary with substrate, application method and exposure. For DTM or applications over zinc or MIO-zinc, consult the latest version of Tnemec Technical Bulletin 13-100 or contact your Tnemec representative.
Theoretical Coverage
1,363 mil sq ft/gal (33.4 m²/L at 25 microns). †
Number of Components
Two: Part A and Part B
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