Description
SEM High-Build Primer Surfacer - Grey Aerosol | Boat Supply Store
Address substrate imperfections and ensure optimal topcoat adhesion on your vessel with SEM High-Build Primer Surfacer. This flexible acrylic coating delivers superior adhesion and excellent filling properties across diverse marine substrates including fiberglass and SMC. Achieving coverage of 11 sq. ft. at 2 mil DFT, it is easily sanded and ready for refinishing after a 1-hour dry time.
Key Features
- Achieve superior adhesion on challenging marine surfaces.
- Benefit from excellent filling properties to smooth imperfections.
- Utilize a flexible acrylic coating for durable finishes.
- Prepare steel, aluminum, urethane, fiberglass, plastics, and SMC for topcoating.
- Enjoy easy sanding for a smooth, paint-ready surface.
- Topcoat with most refinish materials for versatile application.
- Apply conveniently with a 20 oz. aerosol can.
- Achieve a professional finish with a grey color.
Specifications
| Product Specifications | |
|---|---|
| Volume | 20 oz. aerosol can |
| Color | Grey |
| Coating Type | Flexible acrylic |
| Coverage | 11 sq. ft. at 2 mil DFT |
| Recommended Coats | 2-3 medium wet coats |
| Dry Time | 1 hour |
| Flash Time Between Coats | 5-10 minutes |
| Substrate Compatibility | Steel, aluminum, urethane, fiberglass, plastics, and SMC |
Who This Is For
Boat owners and marine repair professionals seeking a high-performance primer for restoring and preparing fiberglass, SMC, and other substrates. This versatile aerosol is also ideal for automotive restoration enthusiasts and DIYers tackling challenging repair projects.
How It Compares
| Feature | SEM High-Build Primer Surfacer - Grey Aerosol | Competitor |
|---|---|---|
| Product Type | High-Build Primer Surfacer | Stone Chip Protection Aerosol, Masking Tape |
| Primary Function | Priming, filling, adhesion | Stone chip protection, Masking |
| Substrate Compatibility | Steel, Aluminum, Urethane, Fiberglass, Plastics, SMC | Primarily automotive body panels, N/A |
| Color | Grey | Black, Tan |
| Volume | 20 oz. | 500ml, 60 yd. roll |
Common Concerns Answered
Will this primer adhere well to my boat's fiberglass hull?
Yes, SEM High-Build Primer Surfacer is engineered for superior adhesion on fiberglass, alongside other marine-grade materials like SMC. Ensure proper surface preparation, including cleaning and scuffing, for optimal bonding.
I'm worried about the cost compared to generic primers.
While the initial investment may be higher, this high-build primer offers exceptional filling and adhesion capabilities, potentially reducing the number of coats and labor required for a professional finish, ultimately saving you time and resources.
Can aerosol can performance be affected by temperature?
Aerosol can performance can indeed vary with temperature. For optimal results, apply SEM High-Build Primer Surfacer in temperatures recommended on the product label, typically between 60-80°F (15-27°C), and avoid extreme conditions.
Frequently Asked Questions
What surfaces can SEM High-Build Primer Surfacer be used on?
It is designed for excellent adhesion and filling on steel, aluminum, urethane, fiberglass, plastics, and SMC.
How long does SEM High-Build Primer Surfacer take to dry?
The primer has a dry time of approximately 1 hour.
What is the coverage rate of SEM High-Build Primer Surfacer?
The coverage rate is 11 square feet at a dry film thickness (DFT) of 2 mils.
Can SEM High-Build Primer Surfacer be sanded?
Yes, it is formulated to be easily sanded after drying, allowing for preparation before topcoating.
What is the flash time between coats for SEM High-Build Primer Surfacer?
A flash time of 5-10 minutes is recommended between coats for optimal application.
