Crestomer 1152PA Structural Adhesive Urethane Acrylate Structural Adhesive

Description

Crestomer 1152PA is the ultimate flexible structural adhesive for large-scale composite applications. It is a high-performance, two-part urethane acrylate that delivers over 100% elongation, providing unmatched impact and fatigue resistance. Its non-sag, gap-filling formula is perfect for bonding hulls, decks, and core materials without slumping, while the low-heat cure prevents surface distortion for a flawless finish. With multiple marine certifications, it’s the trusted, durable choice for the most demanding bonding jobs.

Crestomer 1152PA is a two part, MEKP activated, 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 its excellent adhesion to a wide range of materials, 1152PA canalso be used as a general purpose adhesive. It can be used for bonding diesel tanks, contour joints in FRP components, tobuild up damaged areas and to bond green FRP.

Each kit includes: 1 pail of Crestomer Resin, 1 bottle of the related MEKP Hardener, 1 mixing stick, 1 instruction and product data packet

Similar Formulas

• Crestomer 1150PA
• Crestomer 1153PA
• Crestomer 1186PA

Certifications Held

• Lloyds Certified
• DNV Certified
• RINA Certified

Features and Benefits

Urethane acrylate base	Improved aesthetics and better surface fi
Excellent retention of toughness	Excellent adhesion and high elongation at break
Highly thixotropic	Non sagging on vertical surfaces. Excellent Gap Filling
Controlled cure and exotherm behaviour	Excellent fatigue and impact resistance
Low exotherm during cure	Low risk of print through. Friendly to temperature-sensitive materials. will not melt/deform low-temp materials.
Over 100% Elongation	A truly flexible structural adhesive
Easy to apply	Saves you time and costF

Setting / Gel Properties

• Set Time (working time) : 50 Minutes:
• Fixture Time (Handling strength): 10 hours
• Gap Filling : 1 25 mm/ 0.04 – 1.0 inch
• No Color Change during Cure Process
• Recommended application (installation) temps: 18C – 25C / 64F – 77F

Mechanical properties

• Tensile strength3 22 – 25 MPa
• Tensile modulus3 1000 – 1500 MPa
• Tensile elongation3 100 – 120%
• Hardness 65 Shore D
• Water Absorption4 0.36%
• Approvals Lloyds, RINA, DNV.GL

Liquid properties

• Product: 1152PA
• Viscosity: 250,000 320,000 cP
• Specific gravity 1.05
• Volatile Content 47%
• Mixed ratio (by volume) 50:1
• Appearance Mauve gel
• Shelf life 12 months

Recommended Substrates (Lap shear / Cleavage strength MPa)

Metals

• Stainless Steel 8 11 12 MPa
• Aluminium 8 5 8 MPa

Wood

• Marine ply 9 – 2 4 MPa
• Balsa 9 2 4 MPa

Composites

• GRP/FRP9 12 14 MPa
• Polyester resin 12 14 MPa
• DCPD 7 8 MPa
• Vinyl ester 7 8 MPa
• Epoxy 7 8 MPa

Cure Exotherm (heat release)

• At 15 C / 59 F, peak exotherm is 18 C / 65 F
• At 23 C / 74 F, peak exotherm is 35 C / 95F
• At 30 C / 86 F, peak exotherm is 50 C / 122 F

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 proprietary strippable cloths such as peel ply (without lubricant contaminates). Ifthe laminate surface is more than three days old, it is recommended that they are lightly abraded and wiped with acetone orstyrene on a lint-free cloth prior to bonding.

Application

Crestomer 1152PA is supplied pre-accelerated. The required hardener is a medium reactivity MEKP catalyst. The catalyst isadded at 2% v/w.

MEKP activator volume needed for different container sizes:

• 1 quart pail (2.2 pounds): at 2% is 0.044 pounds (0.7 fl oz or 20 ml) of MEKP
• 1 gallon pail (8.8 pounds): at 2% is 0.18 pounds (2.8 fl oz or 82 ml) of MEKP
• 5 gallon pail (44 pounds): at 2% is 0.9 pounds (14 fl oz or 414 ml) of MEKP
• 50 gallon drum (440 pounds): at 2% is 8.8 pounds (1 US Gallon or 4 Liters) of MEKP

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 15oC / 59oF. Recommended temperature range for application is between 18oC and 25oC / 64oF – 77oF. 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 andapplication. Contact Perigee Direct, or a 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 oninformation 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 2C and 23C/ 36F and 73F in the original unopened container in a dry wellventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidising agents. Exposure to temperaturesoutside 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 isindicated on the product labels.