What Is a Scraper?
A scraper is a tool similar to a spatula, featuring a flat blade attached to a hand-held grip. It is used for finishing the surfaces of paints and other materials at craft and construction sites. Scrapers come in various shapes, with most being large enough for easy hand-holding. Larger sizes are also available for construction purposes.
Beyond surface finishing, scrapers are utilized for removing stubborn stickers, kitchen grease, and paint.
Specialized glass scrapers for glass surfaces are also available.
Uses of Scrapers
Scrapers are employed in construction site finishing work, including painting. They are also used to remove old paint layers, minor burrs, and rust.
Additionally, scrapers effectively remove tough stains like grease and deteriorated gaskets in kitchens. When dirt or paint is too stubborn for hand power, a hammer is used to assist the scraper in removal.
Recently, kitchen scrapers have gained popularity for oil removal from dishes after use.
Principle of Scrapers
Scrapers primarily come in three shapes:
- Spatula type
Suited for detailed work, this type is ideal for removing dirt from small parts and areas, such as kitchen corners. Its design facilitates easy force application, making it useful for narrow spaces like window sashes. - Wide type
Also known as the fan-shaped type. Its wider blade is efficient for cleaning broad areas like walls and floors. - 1-blade type / 3-blade type
The 3-blade type, in particular, has strong scraping power, ideal for removing window stains, water marks on tiles and mirrors, and rust on metals. With replaceable blades, they offer long-term use.
Scraper blades are made from materials like stainless steel, ceramic, super steel, and plastic, chosen based on the object and application. Stainless steel is preferred for challenging rust and stains, while plastic blades are chosen for scratch-sensitive surfaces.
Exercise caution with the blade to prevent hand injuries.
How to Choose Recommended Scrapers
Diverse scraper types exist for surface finishing, paint removal, and cleaning of grease and stickers. Below are guidelines for selecting the most suitable scraper for your needs:
1. Compact Spatula Type
This standard scraper features a stainless steel blade and a plastic handle in one piece. Its small size is convenient for tight spaces, enabling the removal of stubborn stains and stickers. However, it may struggle with hard paint removal.
2. Plastic Blade Type
These scrapers have a plastic blade, less effective for tough, adherent stains or stickers but ideal for scratch-sensitive surfaces like flooring or car bodies.
3. Blade Type
For hard coatings or professional use, scrapers with detachable, replaceable blades are recommended. The ability to replace dull blades makes them more effective and long-lasting. Additionally, attaching sharp cutter blades improves work efficiency.
How to Use Scrapers Safely
Since many scrapers have sharp edges, incorrect usage can lead to serious accidents. Here are safety tips for proper scraper use:
1. Check for blade spills (replace the blade if it’s replaceable).
2. Wear knife-proof gloves (or double military gloves if unavailable).
3. Align the scraper’s blade parallel to the object being worked on.
4. Slide the scraper forward as if shaving off the target substance.
5. Avoid applying excessive force to prevent damage to surfaces other than the intended area.