Wind Turbine Blade Repair

Product Overview

Gurit offers a range of blade repair products that help to extend the service-life of wind turbines, minimising turbine down times, easy to use while achieving consistent repair quality. The formulations have also been optimised for a wide range of temperature and humidity conditions, maximising the weather window for application while minimising waste and complying with state-of-the art health & safety standards for operators and in-field workers.

Blade Repair Solutions

Learn more about Gurit’s wind turbine blade repair product solutions that extend the service life and reduces downtimes. Note the practical repair packaging, dispensing and mixing solutions for easy processing and handling. Operators appreciate the robust mechanical properties under challenging application conditions. Our materials are qualified by blade OEM as well as DNV-GL and technical support is available worldwide. Two product streams, heat cured and UV cured are detailed in the tables below.

Gurit offers materials and application solutions, ideal for permanent repairs, as well as for temporary repairs – with permanency potential.

Gurit offers repair solutions that focus on achieving:

Minimum turbine down time
Consistent repair quality
Ease of application
Maximum weather window
Minimum environmental impact
Maximum operator health and safety

Through:

Market leading product health and safety
Practical repair packaging
Easy processing through smart mixing and dispensing for heat-curing laminating systems
Robust process for UV curing prepreg laminating, ideal for temporary repairs
Technical support help line
Choice of two product streams, Heat and UV cured to suit the best repair scenario

Ambient curing blade repairs

Gurit has a wide range of ambient curing* products that are OEM qualified and available globally through our distribution network. To find your nearest stockist, please visit our Contact Gurit page.

*Post cure may be needed to achieve desired properties.

GURIT PRODUCTS	Product	Application Temperature Range	Sizes	Speeds	Technical Datasheets
LAMINATING	Ampreg 30	5-30°C	600ml Cartridge	Fast & Standard	Ampreg 30
	Ampreg 30	5-30°C	1.26kg & 4.66kg Packs	Fast to X-Slow	Ampreg 30
	Ampreg 31	5-30°C	600ml Cartridge	Fast to X-Slow	Ampreg 31
	Ampreg 31	5-30°C	1.26kg & 4.66kg Packs	Fast to X-Slow	Ampreg 31
INFUSION	PRIME™ 37	15-30°C	4kg Packs	Fast to X-Slow	PRIME 37
FILLER	S'Fill 15 Min	10-20°C	5L & 10L Packs	Fast	S'Fill 15 Min
FILLER	S-Fair 600	10-20°C	2L Packs	Fast & Standard	S-Fair 600
ADHESIVE	Spabond™ 400 Range	10-20°C	400ml Cartridge	Fast to X-Slow	Spabond™ 435 Spabond™ 440
	Spabond™ 730	10-20°C	600ml Cartridge	Fast	Spabond™ 730
	Spabond™ 5-Minute	10-20°C	400ml Cartridge	Fast	Spabond™ 5-Minute

AMPREG™ 3X SERIES

The AMPREG 3X range of laminating systems have excellent mechanical and thermal properties and good cure progression from ambient only cures. Additional features include:

EASY MIXING AND APPLICATION

Gurit Ampreg™ 3X Laminating Series is available with a single range of hardener speeds from fast to extra slow. Small packs optimised for wind repair operations are available

UV STABILITY

Ampreg™ 3X is UV stable for most wind repair applications for short periods of time, facilitating emergency repairs between routine maintenance windows, without topcoat and whilst retaining its mechanical properties

LIGHT REFLECTIVE TECHNOLOGY

Gurit Ampreg™ 3X Laminating Series has Light Reflective Technology (LRT) as standard, allowing the material to fluoresce under UV light. This can be used for contamination checks, health and safety monitoring or for fast inspection of repaired parts

AWARD WINNING

Gurit’s innovative approach to prioritising user health & safety has been recognised and awarded the Composites UK Innovation in Composite Materials award

EXCELLENT HEALTH & SAFETY

Gurit Ampreg™ 3X Laminating Series is free from SVHC’s & CMR’s

CERTIFICATIONS

Ampreg™ 30 and Ampreg™ 31 are DNV-GL and Lloyd’s Register certified

Ampreg™ 3X CDS Cartridge Dispense System

Elimination of human error of mixing and dispensing
- Perfect mix ratio (pre-weighed)
- Perfect mix quality (mixer nozzle)
Clean application process
Pot life advantages/extensions – taking stress out of laminating operation
Reduction of numbers of hardener speeds needed
70% reduction of hazardous material and packaging waste
70% reduction in CO2 emission in packaging going from hard plastic containers to bags

UV curing blade repairs

Gurit’s market leading UV curing solutions require specialist training and equipment. To find out more or to find the nearest material stockist, please visit the Contact page.

GURIT PRODUCTS	Product	Application Temperature Range	Sizes	Technical Datasheets
PREPREG	RENUVO PP	5°C-55°C	600gsm E-Glass UD & Biax	RENUVO PP
PRIMER	RENUVO MPS	5°C-55°C	310ml Cartridges	RENUVO MPS
PREPREG + PRIMER	RENUVO PP-MPS	5°C-55°C	see above	RENUVO PP-MPS

RENUVO™ Prepreg Laminating System

Time saving and efficiency, – ultimately saving up-tower/on-blade time and an expanded repair weather window
In particular fit for temporary repairs –
- laminating repairs
- filling and fairing
Improved health and safety – CMR free and removes risks of resin curing on ropes
No need for vacuum or heating for up-tower laminating
A quickly finished laminating repair up-tower/on-blade, before fill, fair and final coating system application
No hazardous waste

NEW Improved Tools

RENUVO™ Cure Lamp
- Robust aluminium casing
- Extended light array, width: 16.5 cm
- Powered by 2 standard DeWalt/Milwaukee rechargeable hand tool batteries (to be carried up tower in a canvas belt bag)
Repair Patch Preparation Tools
- Silicone vaccuum consolidating heater mat
- Spike roller for air evacuation

Using the RENUVO™ method, requires specialist training and equipment. Technical support, product and process training through our distribution partner HF Industri & Marine ApS, or from Gurit (UK) Ltd.