Datasheet

Product 5953 PST Stick
November 2002
Technical Data Sheet
Product 561 Pipe Sealant Stick
March 2003
NOT FOR PRODUCT SPECIFICATIONS
THE TECHNICAL CONTAINED HEREINARE INTENDED AS REFERANCE ONLY. PLEASE CONTACT LOCTITE CORPORATION
QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT.
PRODUCT DESCRIPTION
LOCTITE
®
Product 561 Pipe Sealant Stick is a single
component, semi-solid anaerobic pipe sealant compound. It
is supplied in a self-feeding applicator stick that facilitates
application of the material where a conventional liquid or
paste product would be difficult to use. This is an anaerobic
product and cures when confined in the absence of air
between close fitting metal surfaces. This industrial grade
sealant develops controlled low strength to facilitate
disassembly. This product also fluoresces for easy
coverage inspection.
TYPICAL APPLICATIONS
This product is recommended for sealing metal tapered pipe
threads and fittings, National Pipe Thread (NPT) for
industrial applications in the chemical processing, petroleum
refining, pulp/paper, waste treatment, textile, utilities/power
generation, marine, automotive, industrial equipment, gas
compression and distribution industries. It is also
recommended for industrial plant fluid power systems.
PROPERTIES OF UNCURED MATERIAL
Typical Value
Chemical Type Methacrylate Ester
Appearance Off-White Wax Consistency
Semi-Solid
Specific Gravity (25°C) 1.14
Softening Point >80°C
PERFORMANCE OF CURED MATERIAL
After 72 hrs @ 22 °C on degreased 3/8” malleable iron pipe tees and
steel plugs, pretorqued to 27 N.m. (240 in lbs), ASTM D 6396-99
Typical Value
Breakloose torque, ISO 10964, N.m 46
(lb.in) (410)
TYPICAL CURING PERFORMANCE
Cure speed vs. temperature
The rate of cure will depend on the temperature. The graph
below shows the shear strength developed over time on 3/8
inch NPT fittings.
0
25
50
75
100
of Full Strength on steel
5min10min 30min
1hr
3hr
6hr
24hr
72hr
Cure Time, Hours
125
5°C
22°C
40°C
Cure speed vs. activator
With inactive metal surfaces, or when large gaps are
present, applying activator N to the surface will improve cure
speed. The graph below shows the torque strength
developed over time on 3/8 inch malleable iron and steel
NPT fittings. Primer applied to pipe tee only.
Pressure Resistance
Loctite PST Stick was successfully tested for instant
sealability at 100 psi. 3/8” NPT maleable iron pipe tees and
steel plugs were assembled, torqued to 27 N.m (240 in. lbs),
and allowed to cure for 5 minutes at 22°C prior to testing.
TYPICAL ENVIRONMENTAL RESISTANCE
Test Procedure : Breakloose torque, fittings seated to 27 N.m.
(240 in lbs), ASTM D 6396-99
Substrate: Degreased 3/8” malleable iron pipe tees and
steel plugs
Cure procedure:
72 hours at 22°C
Chemical / Solvent Resistance
Aged under conditions indicated and tested at 22°C
Solvent Temp.
% Initial
Strength
Retained
After
500 hrs
% Initial
Strength
Retained
After
1000 hrs
Pressure Test
100 psi
1000 hrs
Motor Oil
125°C
137 143 Pass
Unleaded
Gasoline
22°C
100 100 Pass
Brake fluid
22°C
102 103 Pass
Auto trans fluid
87°C
127 133 Pass
Water/Glycol
(1:1)
87°C
122 122 Pass
Ethanol
22°C
95 91 Pass
Acetone
22°C
90 87 Pass
Isopropyl
alcohol
22°C
103 100 Pass
5min
10min 30min
1hr
3hr
6hr
24hr
72hr
Cure Time, Hours
0
25
50
75
of Full Strength on steel
0
Act N
Act T
No Activator