





FS400 First Step Primer - 1 Gal. / 3.78 L Pail
New
ROBERTS® FS400 First Step™ PRIMER is formulated to ensure proper adhesion of flooring to porous substrates. FS400 prevents over-absorption of adhesives to create a uniform finish and can help protect the adhesive and flooring from alkalinity. FS400 PRIMER provides a better adhesion surface for a professionally finished floor.
Features:
- Acrylic latex formulation, ready to use, single-component primer – no dilution necessary
- Use to prepare dry substrates to create a uniform finish that promotes adhesive bond performance
- For use on porous substrates, preparing dry substrates
- Approved substrates: APA-rate underlayment grade plywood & OSB; Cement backboard; Concrete; Acoustical concrete; Gypsum and lightweight concrete; Floor patch; Radiant heated floors <85°F (30 degrees Celsius) Surface
- Curing Time: 30-60 minutes
- VOC: 0 g/L
- MVER 5 lbs. RH 85%
- 2-year shelf life
- Covers approximately 350-400 sq. ft. per gallon
- Lifetime warranty
Environmental / Compliance:

FS400 First Step Primer - 1 Gal. / 3.78 L Pail
Sale price$0.00
Details
Brand
ROBERTS
SKU
FS400-1
UPC
075378001188
Country of Origin
United States
Commercial / Residential
Indoor / Outdoor
Primary Material
Acrylic Latex
Format
Application Method
Compatible Substrates
Adhesive Features
Curing Time
30 – 60 min
pH Level
12
Releasable / Permanent
Permanent
Shelf Life
2 Years Unopened
VOC Content
0 g/L
Adhesive Type
Surface Preparation
Color
Installation Method
Moisture Resistance Level
5 lb MVER / 80% RH
Dimensions
Item Height (in)
Item Length (in)
7.5
Item Width (in)
7.5
Item Weight (lb)
9.38
Retail Packaging Height (in)
7.75
Retail Packaging Depth (in)
7.5
Retail Packaging Width (in)
7.5
Retail Packaging Weight (lb)
9.38
Coverage (sq ft)
400
Volume
1 gal



