Xenon Weathering Chamber for Furniture and Wood Products

Xenon lamp aging tester: the all-round solution for furniture and wood products weathering test

I. Core Application Scenarios

1. Outdoor furniture material aging assessment

Wood substrates: test the cracking and warping resistance of solid wood, plywood, wood-plastic composites (WPC) under UV (290~400nm) and humidity-heat cycles, and quantify the change in moisture content (8%→18% resulting in a 35% decrease in strength).

Surface Coating: Evaluate the color difference (ΔE value), gloss loss (e.g. 60° angle gloss decreases from 90GU to 60GU) and anti-chalking level of varnish and water-based paint (ASTM D4214).

Upholstered Furniture: Test the yellowing, mildew and tensile strength retention (leather breaking load from 120N→75N) of leather and fabric under light (0.55 W/m²@340nm) and condensation (40℃/100% RH).

2. Validation of environmental adaptability of wood products

Effectiveness of preservative treatment: Compare the preservative loss rate and bioerosion resistance of ACQ and CA-B preserved wood under simulated tropical rainy season (spraying for 18 minutes/drying for 102 minutes).

Adhesive durability: Test the peel strength of urea-formaldehyde resin (UF) and polyurethane (PU) adhesive under high temperature and high humidity (85℃/85% RH), and screen formaldehyde emission (EN 717-1) compliant products.

Accurate test parameters and standard adaptation

Test Objective Parameter Setting International Standard

Wooden floor UV aging 0.55 W/m²@340nm + 65℃/50% RH ISO 4892-2, ASTM D2565

Outdoor wood paint adhesion test Spray cycle 12 min/2 hrs, humidity 50%→95% RH ISO 11507, EN 16121

Weatherability of preserved wood 0.8 W/m²@420nm + Salt spray (5% NaCl) AWPA E12, JIS K 5600-7-8

Third, the core technical advantages of the equipment

1. full-spectrum simulation, restore the real environment

Spectral match ≥ 95%: xenon lamp + daylight filters accurately reproduce the solar spectrum, to avoid overexposure to carbon arc lamps (only 60% match), to prevent non-natural light degradation of wood.

Multi-factor coupling control: supports automatic switching of light (0.3~120 W/m²), spray and condensation, simulating the scenes of Northern Europe's cloudy rain or desert sunshine.

2. Intelligent data-driven R&D

Multi-dimensional sensing: Synchronized monitoring of surface temperature (infrared thermography), internal stress (fiber optic strain gauges), and VOC release (PID sensors) to build a heat map of material aging.

AI prediction model: Input 21-day test data to predict 10-year outdoor performance degradation of wood products (error ≤15%), guiding formulation optimization.

Typical test cases and results

Case 1: Optimization of outdoor wood paint weatherability

Challenge: Water-based paints are prone to chalking in subtropical climate (adhesion drops to level 2 after 6 months).

Program:

Test conditions: 0.55 W/m²@340nm + 45℃/60% RH, light 8h→spray 3 times/dark 16h.

Optimization result: Add 3% nano TiO₂, ΔE<1.5 after 1000 hours test, adhesion maintains grade 1, life extension to 5 years.

Case 2: WPC flooring anti-UV aging

Problem: WPC shows discoloration (ΔE>5) and strength loss (modulus of elasticity ↓30%) after 2 years in strong UV area.

Solution:

Intensive testing with two light sources (0.8 W/m²@340nm) and addition of 2% HALS light stabilizer.

Result: Modulus of elasticity retention increased from 60% to 85%, with an outdoor life of 8 years.

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