Wind Energy Equipment Manufacturer

Client Profile

Business Challenge

The​‍​‌‍​‍‌​‍​‌‍​‍‌ customer was confronted with a range of issues concerning surface preparation that kept affecting the performance and durability over time of the first layer of paint:

• Non-uniform Coating Adhesion: Modification in the steel grit blasting gave rise to uneven anchor profiles, which locally caused coating failures.
• Possibility of Surface Contamination: Residual ferrous contamination fostered corrosion by products that could spread through the coating areas.
• Too Much Surface Roughness: Extremely rough profiles made the whole operation less attractive and more expensive (in terms of volumes of paint) the whole operation.
• Costs of Rework Remained High: More coating flaws were discovered by inspectors, necessitating additional blasting and repainting.
• Environmental Issues: In addition to the dust produced during blasting, abrasive disintegration was a contributing element to the workshop's unclean conditions and non-compliance with regulations.

Solution Implemented

After thorough trials and studying coating performance, our suggestion was to use Glass Beads blasting as a way of controlled surface conditioning before the application of a new coat.

Specific Solution:

• Use medium-grade spherical Glass Beads (200–400 microns) for surface conditioning along with peening.

Specific Solution:

• Using low blasting pressure to produce soft and evenly distributed surface characteristics in order to achieve a good base for the application of modern advanced coating systems.
• Using a non-ferrous blasting process solely in order to prevent contamination.
• Keeping a controlled dwell time to balance surface energy and surface roughness.

Application Objective:

• Consistently enhance the solidity of paint films
• Lower the quantity of paint needed
• Maintain corrosion protection level even with minimal material removal

Implementation Process

Timeline: 6 weeks were required, going from the trials to industrial process deployment.

Deployment Steps:

• Week 1: Conducting pilot trials on nacelle housings and fabricated steel panels.
• Week 2: Coating adhesion tests and surface profile determination.
• Week 3: Conducting the accelerated corrosion and salt spray tests.
• Week 4: Giving their final consent to the blasting parameters and SOPs.
• Week 5: Inserting the process into the production line and giving operators training.
• Week 6: Increasing the volume of production and checking the performance.

Training: Coating inspectors and operators got trained in profile control, contamination prevention, and quality verification.

Results & Impact

The use of Glass Beads has genuinely been reflected in the better functioning of the whole production system and has increased the quality of the products:

• Standardized Surface Profile: They could maintain the same tightly controlled surface condition over large components.
• Improved Coating Quality: Over 50% fewer coating failures occurred.
• Decreased Paint Use: Because the surfaces looked smoother, an average of 15–18% less paint was utilized.
• Less Rework: They were able to significantly reduce the quantity of repainting and re-blasting procedures.
• Cleaner Operations: Lower dust levels improved workplace safety and environmental compliance.

ROI & Business Benefits

• Material Savings: Less use of paint and fewer reworks.
• Process Stability: A reproducible surface preparation method that could be applied to large components.
• Sustainability Alignment: Waste production was lowered, which was in line with the values of renewable energy.
• Payback Period: Roughly 12 months, mainly because coating rework and material costs were lowered.

Why the Client Chose This Company

The client decided to work with us because of:

• Process Engineering Expertise: In-depth knowledge of the coating–surface interaction.
• Controlled Blasting Know-How: The capability of making changes to the surface condition before the traditional abrasive blasting happens reaches a high degree of refinement.
• Trial-Backed Recommendations: Decisions based on measurable coating and corrosion test results.
• Long-Term Support: Continuous process optimization as component designs evolved.