Densyl Mastic, Protective, Waterproof, Non-setting Mastic, by Denso

A protective, waterproof, non-setting mastic for sealing, filling and caulking.

Starting at $223.43

SKU
Denso Densyl Mastic: Protective
Grouped product items
Product Name Qty
Densyl Mastic, 6.6 lb. Bags, 6 Bags/Case
$223.43

Description 

Description

Densyl Mastic is a cold applied self-supporting mastic. It is a petrolatum compound containing inert siliceous fillers and vegetable fibers.

Uses

Densyl Mastic is used for sealing, filling and caulking applications where a protective, waterproof and non-setting mastic is required. It can be used to contour tank bases and profile irregular surfaces. It is applied prior to the tape application and generally used in conjunction with primer, Denso Petrolatum Tapes or Denso Bituminous Tapes.

Features

• Excellent sealing properties
• No VOCs
• Will adhere to metal, PVC, polyethylene and concrete
• Not effected by water, acids and salts
• Easy application
• Inert and environmentally stable
• Minimal surface preparation (SSPC SP 2-3)

Application

Prepare surfaces by removing all loose scale, rust or other foreign matter in accordance to SSPC SP2 "Hand Tool Cleaning" or SP3 "Power Tool Cleaning". High pressure water wash of 3,000 - 7,000 psi is also suitable. Apply a thin film of appropriate primer to the surface. Then, by hand application, mold the mastic to a rounded configuration to fill irregular shapes and reduce sharp edged surfaces.

Specifications

Properties

English

Metric

Specific Gravity
Specific Volume
Flash Point
Temperature Range

1.39
20 in3 / lb
> 356oF
-50oF to 194oF

1.39
720 cm3 / kg
> 180oC
-46oC to 90oC

Advantages

• Withstands high ambient temperatures
• Goes on easily
• No primer required
• No waiting for drying or curing

Packaging

Blocks
  6 each 6.6 lb blocks = 39.6 lbs per case
  (6 each 3 kg blocks = 19 kg per case)
Rounds
  12 each 2.17 lb round = 26 lbs per case
  (12 each 1 kg round = 12 kg per case)
Blankets
  5 each 10" x 36" = 44 lbs per case
  (5 each 250 mm x 900 mm = 20 kg per case)

Safety

MSDS for Densyl Mastic

Quantity Estimates, Densyl Mastic Blocks or Rounds

Pipe DiameterFlanged JointFlanged ValveDresser Coupling
inchesmmlbskglbskglbskg
4
6
8
10
12
14
16
18
20
24
30
100
150
200
250
250
250
400
450
500
600
750
7
9
11
14
16
18
20
24
26
30
40
3.15
4.05
4.95
6.30
7.20
8.16
9.00
10.8
11.7
13.5
18.0
21
27
33
42
48
54
60
72
78
90
120
9.45
12.15
14.85
18.9
21.6
24.3
27.0
32.4
35.1
40.5
54.0
18
22
30
38
46
52
56
66
72
86
104
8.1
9.9
13.5
17.1
20.7
23.6
25.2
29.7
32.6
39.0
41.2

 

Quantity Estimates, Densyl Mastic Blankets

Pipe DiameterFlanged
Joint
Flanged
Valve
Dresser
Coupling
inchesmmea.ea.ea.
10
12
14
16
18
20
24
30
36
54
250
300
350
400
450
500
600
750
900
1350
2
2.5
2.5
3
3.5
4
4.5
5
6
12
6
7.5
17.5
9
10.5
12
13.5
15
18
36
2
2.5
2.5
3
3
4
4
6
6
12