Urethane Acrylate Adhesives
by Scott Bader
PEVE Bonding Pastes
PEVE Bonding Pastes
Primerless MMA Adhesives
Bonding Pastes
Bonding Pastes
1152PA
Product Overview
Crestomer 1152PA is a two part pre-accelerated, highly thixotropic structural adhesive based on unsaturated
urethane acrylate in a styrene monomer. It is used in many structural composite applications and has excellent
adhesion to FRP laminates, core materials, wood and some metals. Due to it s excellent adhesion to a wide
range of materials, 1152PA can also be used a general purpose adhesive. It can be used for bonding diesel tanks,
contour joints in FRP components, to build up damaged areas and to bond green FRP.
Features and Benefits
Urethane acrylate base
Excellent retention of toughness
Highly thixotropic
Controlled cure and exotherm behaviour
Improved aesthetic and better surface finish
Excellent adhesion and high elongation at break
Non sagging on vertical surfaces
Excellent fatigue and impact resistance
Application Properties
Working Time
1
50 Minutes
Fixture Time
2
10 hours
Gap Filling 1 25 mm/ 0.04 – 1.0 inch
Colour change (over cure)None
Recommended Application
Temperature
18
o
C – 25
o
C/ 66
o
F – 77
o
F
Crestomer
1152PA TDS | Page 1 of 3 | Version: February 2018 www.scottbader.com
Tensile Strength
5
22 – 25 MPa
Tensile Modulus
5
1000 – 1500 MPa
Tensile Elongation
5
100 – 120%
Hardness 65 Shore D
Water Absorption
6
0.36%
Approvals Lloyds, RINA, DNV.GL
Mechanical Properties
Technical Data Sheet
Crestomer
1152PA TDS | Page 2 of 3 | Version: February 2018 www.scottbader.com
Recommended Substrates
Metals
Stainless Steel
Aluminium
–
Wood
Marine Ply
Balsa
–
Composites
GRP/FRP
Polyester Resin
DCPD
Vinyl Ester
Epoxy
–
Non – Recommended
Substrates
Recommended Substrates
(Lapshear Strength MPa
6
)
Product 1152PA
Viscosity
3
250,000 – 320,000 cP
Specific Gravity 1.05
Volatile Content 47%
Mixed Ratio
4
(by Volume) 50:1
Appearance Mauve Gel
Shelf Life 12 months
Liquid Properties
Exotherm of Crestomers
High exotherm in an adhesive can cause the substrate to distort and give poor aesthetic characteristics to
the parts being bonded. The chemistry of Crestomer
adhesives ensures that high exotherm temperatures, a
characteristic of some other adhesives do not occur. The graph shows the exotherm temperatures of Crestomer
adhesives over a range of test temperatures.
100
90
80
70
60
50
40
30
20
10
0
Temperature of test
Exotherm
0
C
12
o
C 25
o
C 30
o
C
Crestomer
1152PA TDS | Page 3 of 3 | Version: February 2018 www.scottbader.com
1. Geltime measured with 100g mass of adhesive at 25
o
C/ 77
o
F. Using 2% Butanox M50 catalyst.
2. Time taken at 23
o
C/ 73
o
F (ambient temperature) to achieve 1.4MPa strength in
lap-shear tests according to BS ISO.
3. Measured using Brookfield Viscometer at 25
o
C/ 77
o
F.
4. Mix ratio based on volume and weight for both machine dispensing and hand mixing.
5. Test to BS EN ISO 527-2. 6. BS EN ISO 62.
2018 ScottBader Co Ltd, February 2018
Scott Bader UK
Wollaston, Wellingborough, Northants
NN29 7RL, UK
Tel: +44 (0)1933 666738
Email: enquiries@scottbader.com
All information on this data sheet is based on laboratory testing and is not intended for design purposes. Scott Bader makes no representations or warranties of any kind concerning this
data. Due to variance of storage, handling and application of these materials, Scott Bader cannot accept liability for results obtained. The manufacture of materials is the subject of granted
patents and patent applications; freedom to operate patented processes is not implied by this publication.
Urethane Acrylate Adhesives
by Scott Bader
PEVE Bonding Pastes
PEVE Bonding Pastes
Primerless MMA Adhesives
Bonding Pastes
Bonding Pastes
Surface Preparation
Crestomer 1152PA has excellent adhesion to FRP material provided that the surface has been maintained free
of dust and grease. This can be guaranteed by the use of propietary stripable cloths such as peel ply (without
lubricant contaminates). If the laminate surface is more than three days old it is recommended that they are
lightly abraded and wiped with acetone or styrene on a lint-free, clean cloth prior to bonding.
Application
Crestomer 1152PA is supplied pre-accelerated. The required hardner is Butanox M50 (or other equivalent MEKP
catalyst). The catalyst is added at 2% v/w. Crestomer 1152PA can be applied with a spatula or from a dispensing
unit, taking care to keep air entrapment to a minimum. Application should always be carried out at temperatures
above 15
o
C/ 59
o
F. Recommended temperature range for application is between 18
o
C and 25
o
C/ 64
o
F – 77
o
F. The
use of additional pigments or fillers is not recommended as they can affect the performance of the adhesive.
For industrial/ commercial use only. The user must determine the suitability of a selected adhesive for a given
substrate and application. Contact your local Scott Bader representative for questions or assistance with the
selection of adhesives for your use. This product is intended for use by skilled individuals at their own risk.
Recommendations contained herein are based on information we believe to be reliable. The properties and
strength values are obtained under controlled conditions at the Scott Bader laboratory.
Storage and Shelf Life
Crestomer 1152PA should be stored between 2
o
C and 23
o
C/ 36
o
F and 73
o
F in the original unopened container
in a dry well ventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidising agents.
Exposure to temperatures outside these conditions will affect shelf life. Ideally containers should be opened only
immediately prior to use.
The shelf life for Crestomer products is defined from date of manufacture if stored as recommended. The expiry
date is indicated on the product labels.
Packaging
Crestomer 1152PA is supplied in 25Kg/ 55lbs and 200Kg/ 440lbs containers.
Health and Safety
See separate Material Safety Data Sheet.