Views: 19 Author: Site Editor Publish Time: 2025-12-11 Origin: Site
Winter brings low temperatures and high humidity—two major challenges for putty application on interior and exterior building walls. If not handled properly, these conditions can easily cause the putty layer to crack, bubble, or peel, leading to issues with subsequent paint finishes and derailing project quality and timelines.
Winter putty work isn’t just "business as usual"—it requires a targeted, detail-focused approach. Below are the 5 critical rules to ensure top-notch results even in cold weather:
Stick to the "5℃ rule" strictly: During construction and for at least 48 hours afterward, keep the ambient temperature, wall substrate temperature, and the putty itself above 5℃ at all times. Never work on frozen surfaces. If needed, use enclosed barriers or industrial heaters to create a stable, warm micro-environment for the job.
Opt for putty labeled "frost-resistant" or "low-temperature compatible." These products contain special polymers and antifreeze additives that maintain workability and bonding strength in cold conditions, slow down setting time, and reduce frost damage risks. Don’t risk using regular putty in extreme winter weather—it’s a recipe for failure.
Winter brings high outdoor humidity, while indoor heating can make air too dry. Before construction, check the substrate’s moisture content—delay work if it’s too high. After applying putty, use gentle ventilation (like cross-ventilation away from direct windows) to let moisture evaporate slowly. Avoid direct cold drafts, which cause surface drying while trapping moisture inside, leading to shrinkage cracks.
Mixing: Follow the product instructions exactly. Use warm water (no hotter than 40℃) and stir thoroughly for a uniform consistency.
Application: Stick to "thin coats applied in multiple layers"—each layer should be no thicker than 1mm to reduce shrinkage stress.
Curing: Winter slows drying significantly. Double or triple the interlayer curing time to ensure each layer is fully dry and hardened before moving to the next step. Rushing the process will only lead to problems.
Increase routine checks of substrate temperature, indoor/outdoor temperature, and humidity—keep detailed records. During acceptance, focus not just on flatness but also on hidden cracks and whether the putty’s strength meets standards.
Winter construction is essentially a careful dance with the elements. Every successful low-temperature putty application comes from respecting material science, sticking to process details, and closely managing environmental factors. With advance planning and scientific practices, you can minimize seasonal risks and deliver a strong, reliable base for paint finishes.
