How to select wood varnish suitable for outdoor chairs?

How to select wood varnish suitable for outdoor chairs?

 When choosing wood varnish for outdoor chairs, the following aspects need to be considered:

Protective performance

• Water - resistance: Since outdoor chairs are often exposed to rain, the wood varnish should have good water - resistance and be able to form an effective protective film to prevent water from seeping into the interior of the wood and causing rot and deformation. For example, wood varnish containing polyurethane has relatively excellent water - proof performance.
• UV - resistance: The outdoor environment is sunny with strong ultraviolet rays. High - quality outdoor wood varnish should have good anti - ultraviolet ability to prevent the wood from fading and cracking due to long - term exposure to the sun. Acrylic wood varnish usually performs well in this regard.

Durability

• Abrasion - resistance: During the use of outdoor chairs, there will be friction between people's clothes, objects, etc. and the chair's surface. Choosing wood varnish with good abrasion - resistance can ensure that the paint layer will not be worn out for a long time and maintain a good appearance. You can check the product description or consult the merchant to learn about its abrasion coefficient.
• Adhesion: The adhesion of the wood varnish to the wood should be strong so as to ensure that the paint layer is not easily peeled off. Generally speaking, oil - based wood varnish with a special formula has better adhesion to wood than ordinary varnish.

Environmental friendliness

Ingredient safety: Considering the contact between outdoor chairs and people as well as the impact on the environment, it is best to choose environmentally - friendly wood varnish. Water - based wood varnish uses water as a diluent. Compared with solvent - based wood varnish, it has a lower content of volatile organic compounds (VOC) and is more environmentally friendly and healthy.

Drying speed and construction convenience

• Drying speed: The outdoor environment is changeable. Choosing wood varnish with a fast drying speed can reduce the possibility of dust and other impurities adhering to it and enable the chair to be put into use more quickly. Some fast - drying wood varnish can be surface - dried within a few hours under suitable temperature and humidity conditions.
• Construction convenience: If you plan to do the construction by yourself, it is important to choose wood varnish that is easy to operate. For example, some wood varnish can be directly applied with a brush or spray gun without complicated mixing; while some wood varnish may require the addition of specific diluents and have higher requirements for the construction environment (such as temperature and humidity)