Site Information

shop by Category


 Loading... Please wait...
  • - W. R. Meadows HS-1 SL - One-Part Self-Leveling SMP-Based Sealant - 32 OZ - Gray (WRME2-4708322)
  • - W. R. Meadows HS-1 SL - One-Part Self-Leveling SMP-Based Sealant - 32 OZ  (WRME2-4708322) - Color Chart

W. R. Meadows HS-1 SL - One-Part Self-Leveling SMP-Based Sealant - 32 OZ - Gray

3.00 LBS
Calculated at checkout

Product Description

W. R. Meadows HS-1 SL - One-Part, Self-Leveling, SMP-Based Sealant - 32 Ounces - Gray

HS-1 SL is a one-part, self-leveling hybrid sealant, developed with silyl-modified polymer (SMP) technology. It cures under the influence of atmospheric moisture to form a medium modulus sealant with excellent adhesive properties and resistance to ageing and weathering.


  • One part – no mixing is needed on site.
  • Self-leveling.
  • Supplied in convenient pouches – no tooling or caulk gun needed.
  • Pouch can be resealed.
  • Allows movement capability of 25%.
  • Cures bubble-free.
  • Adheres to green concrete and damp surfaces.
  • Adheres well to most construction materials.
  • Is permanently elastic over a wide range of temperatures.
  • Resists chlorinated water splashes.
  • Non-gassing.
  • VOC-compliant.

Approximate number of lineal feet that can be sealed with 32 oz. (946.4 mL) HS-1 SL pouch.

Depth of Joint 1/4″ 3/8″ 1/2″ 5/8″ 3/4″ 7/8″ 1″
1/4″ 77 51 35 31 26 22 19
3/8″   34 26 21 17 15 13
1/2″     19 15 13 11 10


Color: Gray
VOC Content: 20 g/L
Skin-Time: 15 – 30 Minutes
Tack-Free Time: 45 – 90 Minutes
Cure Time: ¼” (6.4 mm) bead per 24 hours

Times listed above may vary depending on temperature and humidity during and after application.

HS-1 SL can be used in movement and connection joints. Ideal applications include indoor and outdoor pool decks subject to pedestrian traffic.


Surface Preparation
Surfaces must be clean, free of oil, grease or rust and of sound quality. Remove all loose particles or residues with a jet of compressed air, sandpaper, or hard brush. Glass, metal, and other non-porous surfaces must be free of any coatings and wiped clean with solvent.

For optimum adhesion and/or joints over 1″ (25.4 mm) in width, REZI-WELD™ LV from W. R. MEADOWS is recommended.

Clean tools with solvent or alcohol immediately after use. Cured material can only be removed mechanically.

Do not use in underwater applications. Do not use in joints less than 1/4” (6.4 mm) wide and/or 1/4” (6.4 mm) deep.

Shelf Life
One year from date of manufacture. Store unopened product in a cool, dry place under 80° F (27° C).


Manufacturer W.R. Meadows
Product Name HS-1 SL
Type One-Part, Self-Leveling, SMP-Based Joint Sealant
Color Gray
Size 32 Ounce Pouch

Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!

Find Similar Products by Category