TECHNICAL DATA SHEET PAGE 1 of 2
REVISION DATE: 04/07/26
NanoTech Materials TriSeam is a high quality, plasticizer free, water-based, 100% acrylic, fiber-reinforced, highly flexible seam sealer for roof seams. Its unique formulation allows the product to be pumpable and still maintain a high film build, and is designed to provide a long-lasting flexible membrane that will retain flexibility even in the harshest climatic conditions. TriSeam offers excellent adhesion to aged single-ply including TPO, PVC, EPDM, and Mod Bits, and has the unique ability to “breathe,” providing a completely watertight membrane while allowing trapped moisture to escape.
RECOMMENDED USES:
NanoTech Materials TriSeam is intended as an alternative to fabric and coating used on seams, flashing details, and penetrations.
TECHNICAL DATA:
Property Test Method Result
Elongation ASTM D-370 275% ±25 Tensile Strength ASTM D-2370 525 psi ±25 Perms ASTM D-1653 7 Solids Volume ASTM D-1644 55% ±2 Solids Weight ASTM D-370 65% ±2
VOC ASTM D-624 < 50 g/Liter
Density EPA Method 24 11.1 lbs/gal
Temperature Limit — 0°F to 185°F
Low Temp Flexibility ASTM D-522 Passes 180° Flex over ½ Mandrel @15°F
COLORS / PACKAGING & SHIPPING INFORMATION:
Color: Gray
| Container Size | Shipping Class |
| 55 Gallon drum (208.2 liters) | Class 55 |
| 5 Gallon pail (18.9 liters) | Class 55 |
SURFACE PREPARATION:
General: Surfaces to be coated should be dry, free of dust, dirt, oil, loose granules, gravel, peeling coating, and other foreign matter.
COVERAGE RATE:
Apply NanoTech Materials TriSeam to all seams at a rate of one gallon to eighty linear feet 3” wide. This will result in 44 dry mils.
APPLICATION:
This product may be sprayed or brushed on a clean, dry surface. Apply as a sealant for roof seams. Apply enough material to completely cover the seam and 1.5 inches on either side.
NanoTech Materials TriSeam
Sprayable Fiber Reinforced Seam Sealer
TECHNICAL DATA SHEET PAGE 2 of 2
REVISION DATE: 04/07/26
NanoTech Materials TriSeam
Sprayable Fiber Reinforced Seam Sealer Application Properties
| Property | Value |
| Yield (1 gal to 80 linear ft of seam 3” wide) | 80 wet mils (44 dry mils) |
| Dry Time (75°F, 50% humidity) | 5 hours |
| Recoat Window | >8 hours |
| Complete Cure | 24 hours |
ENVIRONMENTAL CONDITIONS:
This product cures by water evaporation only. The product must not be applied when the ambient temperature is below 50°F or if there is any possibility it could fall below 32°F within 24 hours of application. Application is not recommended if rain or dew is likely to occur before the product dries. In high humidity conditions, late afternoon applications should be avoided as overnight dew formation on an uncured surface can cause coating wash-off.
LIMITATIONS:
The surface must be clean and dry. Application is not recommended where ponded water is present. Do not apply over wet substrates or when inclement weather is imminent. Complete cure of NanoTech Materials TriSeam requires complete evaporation of water. Cool temperatures and high humidity retard cure. In addition, this product is not recommended for use without a vapor barrier in cryogenic tank or cold storage roofing applications. It is not intended for use as a thermal barrier.
MAINTENANCE:
Damaged areas should be cleaned and free of loose debris. NanoTech Materials Cool Roof Base Coat or NanoTech Materials Roof Sealant should be applied.
PRECAUTIONS:
- Do not apply when the ambient temperature is below 50°F or if there is any possibility it could fall below 32°F
within 24 hours.
- Avoid applying to wet surfaces or during inclement weather.
- Do not apply if there is significant standing water, if the existing roofing system might retain moisture, or if the
roof area does not effectively shed water.
- Refer to the Safety Data Sheet (SDS) and container labels for comprehensive health and safety information.
This product is intended for use only by trained and approved professional applicators.
SAFE PRACTICES:
This product is designed for professional installation. Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information sources include but are not limited to SDS and product labels. More resources are available at nanotechmaterials.com or by contacting your NanoTech Materials representative directly.