Whitney Building Products Whitney Building Products Whitney Building Products
Whitney Building Products Whitney Building Products Whitney Building Products
Whitney Building Products, Inc., established in 1946, is a family owned and managed Boston based wholesale distributor of sealants, waterproofing, concrete restoration products, coatings with tinting capabilities and related construction tools. With its focus on customer service, it serves contractors and job sites throughout New England from its Boston warehouse. Whitney stocks a broad range of restoration and specialty construction products, including many full manufacturer lines. It also provides consulting to architects and contractors.
Estimating

Epoxy Mortar and Patching Coverage

Mortar (Binder & Sand) Coverage

Thickness
1gallon 25.7 ft 2 1/16 in.
1gallon 12.8 ft2 1/8 in.
1gallon 8.6 ft2 3/16 in.
1gallon 6.4 ft2 1/4 in.
1gallon 4.3 ft2 3/8 in.
1gallon 3.2 ft2 1/2 in.
     
Resinous Binder Silica Sand Mortar Approximate
1gallon +1gallon 1.6 gallons
1gallon +2 gallons 2.2 gallons
1gallon +3 gallons 2.8 gallons
1gallon +4 gallons 3.4 gallons
1gallon +5 gallons 4.0 gallons

Joint Fillers

Linear Feet per Gallon
Width
1/4 in.
1/2 in.
3/4 in.
1 in.
1-1/4 in.
1-1/2 in.
1/4 in.
308.0
1/2 in.
154.0
77.0
D
3/4 in.
102.7
51.3
34.2
E
1 in.
77.0
38.5
25.7
19.3
P
1-1/4 in.
61.6
30.8
20.5
15.4
12.3
T
1-1/2 in.
51.3
25.7
17.1
12.8
10.3
8.6
H
1-1/3 in.
44.0
22.0
14.7
11.0
8.8
7.3
2 in.
38.5
19.3
12.8
9.6
7.7
6.4
2-1/2 in.
30.8
15.4
10.3
7.7
6.2
5.1
3 in.
25.7
12.8
8.6
6.4
5.1
4.3
 
Note: This chart is provided to assist in estimating material requirements and is not intended to endorse any shape configuration expressed therein.

Viscosity Guidelines

Viscosity in
=
 Similar to
Centpoise
=
 Consitency to
1
=

Water
500
=
 # 10 Motor Oil
2,500
=
 Pancake Syrup
10,000
=
 Honey
25,000
=
 Chocolate Syrup
50,000
=
 Catsup
25,000
=
 Peanut Butter
1,000,000
=
 Paste-Caulking Material

Approximate Floor Area in Square Feet from
One Cubic Yard of Concrete for a Given Slab Thickness

Slab Thickness
(inches)
Floor Area
(sq. ft.)
Slab Thickness
(inches)
Floor Area
(sq. ft.)
Slab Thickness
(inches)
Floor Area
(sq. ft.)
1
324
5
65
9
36
1-1/4
259
5-1/4
62
9-1/4
35
1-1/2
216
5-1/2
59
9-1/2
34
2
162
5-3/4
56
9-3/4
33
2-1/4
144
6
54
10
32
2-1/2
130
6-1/4
52
10-1/4
31
2-3/4
118
6-1/2
50
10-1/2
31
3
108
6-3/4
48
10-3/4
30
3-1/4
100
7
46
11
29-1/2
3-1/2
93
7-1/4
44
11-1/4
29
3-3/4
86
7-1/2
43
11-1/2
28
4
81
7-3/4
42
11-3/4
27-1/2
4-1/4
76
8
40
12
27
4-1/2
72
8-1/4
39
12-1/4
26-1/2
4-3/4
68
8-1/2
38
12-1/2
26
8-3/4
37
12-3/4
25-1/2

For other floor thickness, use:
Floor area (ft2) = 324 ÷ Slab thickness (in.)

(Metric)
Floor area in square meters from 1 cubic meter of concrete for a given slab thickness

Floor area (m2) = 1000 ÷ Slab thickness (mm)

Aggregate Extension
Using silica sand

Number of pounds ÷ 165.36 = Additional cu. ft.

Coverage for Coatings

Thickness of Coating Applied (1000 mils = 1 in.)
Coverage Per U.S. Gallon
100% Solids System
1/4 in.
=
250 mils
6.4 ft2
3/16 in.
=
187.5 mils
8.5 ft2
1/8 in.
=
125 mils
12.8 ft2
=
100 mils
16.0 ft2
1/16 in.
=
62.5 mils
25.5 ft2
=
50 mils
32.0 ft2
1/32 in.
=
31.25 mils
51.0 ft2
=
20 mils
80.0 ft2
1/64 in.
=
15.625 mils
102.0 ft2
=
10 mils
160.0 ft2
=
5 mils
320.0 ft2
=
1 mils
1,600 ft2

Coverage

Approximate Coverage Rates

Substrate Sq. Ft. per Gallon
(m2/L) per coat
Troweled stucco 60 - 80 (1.5 - 2.0)
Blown on stucco 50 - 70 (1.2 - 1.7)
Block 50 - 70 (1.2 - 1.7)
Brick 60 - 80 (1.5 - 2.0)
Smooth concrete 90 - 100 (2.2 - 2.5)
Concrete 80 - 100 (2.0 - 2.5)
Coverage rates theoretical on property primed smooth substances. Coverage rates will vary with the texture and porosity of the substrate.

Wet and Dry Film Thickness, mils (mm)

Sq. Ft. per gallon per coat Avg. Dry Film Avg. Wet Film
50 14 - 15 (0.35 - 0.38) 32 - 33 (0.81 - 0.83)
60 12 - 13 (0.30 - 0.33) 26 - 27 (0.66 - 0.68)
80 9 - 10 (0.23 - 0.25) 20 - 21 (0.51 - 0.53)
100 7 - 8 (0.18 - 0.20) 16 - 17 (0.41 - 0.43)
Note: Coverage rates are theoretical on smooth-surfaced, properly primed substances. Important: Warranty applications require a minimum 12 dry mils film thickness.

 
12 Allerton Street, Boston, MA 02119