SeamStitch Acrylic Caulk

Membrane Roofing / Fluid Applied Roofing / Elastomeric Roof Coating - 075600

Product Name

Acrylic Caulk

Lexis Coatings
  • 6460 Hwy 92 Ste 100
  • Acworth, GA 30102
Phone: 770-755-1820
Hours: Mon - Fri 8am - 5pm
SeamStitch Acrylic Caulk
Product Description

SeamStitch Acrylic Caulk is a white, water-based, brush grade acrylic elastomeric caulk. Seals sheet metal fasteners, seams, laps and flashings prior to the application of acrylic elastomeric roof coatings.

  • Excellent weatherability and UV resistance.
  • Superior adhesion to various substrates.
  • Provides a durable, weather resistant, long lasting seal.
  • Easy to use, non-toxic and VOC-compliant water based coating.
Technical Data
  • See table on the following page.
  • Ready to use. Thinning is not necessary. Mix well before using.
  • Roof must be clean, dry and free of any oil, grease, dirt or loosely adhered coating. Bare surfaces must be prepared and checked for compatibility.
  • Follow our roof restoration procedures and always perform an adhesion test.
  • Equipment: putty knife, bulk loader.
Availability & Cost

SeamStitch Acrylic Caulk is available directly from Lexis Coatings and our authorized distributors.


On pre-qualified and registered applications completed by Lexis-approved contractors, long term warranties are available. Contact Lexis Coatings for warranty information.


Read our Care and Maintenance Guidelines.

Technical Services

Contact Lexis Coatings for technical support.

Filing Services

Additional product information is available from Lexis Coatings.

csi This product data sheet conforms to the editorial style prescribed by The Construction Specifications Institute.
The manufacturer is responsible for technical accuracy.

SeamStitch Acrylic Caulk Technical Data

Property Value Method
Application Temperature50°F (and rising) - 100°F. Less than 85% relative humidity
Clean UpWater
CoverageAs needed.
Density11.0 - 11.4 lbs/gal
Dry TimeDry to touch in 4 - 6 hours. 12 - 24 hours to recoat.
Depending on humidity and moisture.
Elongation315% ±50ASTM D-412
Flash PointNone
Packaging1 gallon pail, 5 gallon pail
Permeability0.14 perms/cent
Shelf Life12 months @ 40°F-90°F
Solids by Volume68 ±2%ASTM D1644
Tensile Strength500 ±50psiASTM D-412
VOC<35 grams/liter
Viscosity60,000 ± 25,000 cPBrookfield

Caution: SeamStitch Acrylic Caulk is a water-based product which will freeze and become unusable at temperatures below 32°F. Suspend all application if conditions prevent a complete cure before sunset, rain, fog, dew or freezing temperatures. Lexis Coatings must be completely dry before exposing to water or foot traffic. Keep Lexis Coatings containers covered when not in use. Dispose of all containers in accordance with state and local environmental regulations. Keep away from children. If ingested, DO NOT induce vomiting. Call physician immediately.

Product information contained herein are presented in good faith and believed to be reliable. They do not constitute part of our terms and conditions of sale. It is also not a guarantee, either expressed or implied, that the data are correct or that products described are merchantable or fit for a particular purpose as methods of use are beyond our control. Customer should determine the suitability of our materials and installation recommendations before usage. Manufacturer's sole responsibility shall be to replace that portion of any product that proved to be defective.

csi This product data sheet conforms to the editorial style prescribed by The Construction Specifications Institute.
The manufacturer is responsible for technical accuracy.

5 Gallon Pail White


Safety Data Sheet