How Many Years Can Alloy Putty Last?
3 Answers
Alloy putty can last for about 3 years. Additional information: 1. Polyester Putty: Commonly known as putty, also referred to as unsaturated polyester resin putty, its English name is Poly-Putty-Base. It is a rapidly developing new type of filling material that adheres well to surfaces and does not produce cracks during the drying process. Polyester putty is a polymer material composed of two parts: the main putty (base putty) and a hardener. The main putty typically consists of unsaturated polyester resin and fillers, while the hardener usually contains initiators and plasticizers, which trigger polymerization and enhance performance. 2. Applications: Primarily used for filling and smoothing defects such as pits, pinholes, cracks, and small welds on substrates, ensuring a smooth and even surface before applying the topcoat. It is widely used in various fields including train manufacturing, shipbuilding, bus manufacturing, construction machinery manufacturing, machine tool equipment manufacturing, automotive repairs, furniture, molds, concrete structures, and any metal, wood, or fiberglass products requiring filling and repair.
As a seasoned driver with years of experience, I've used body filler on my car several times. Honestly, it's hard to say exactly how long it lasts—it really depends on how you use it. Generally speaking, with high-quality polyester filler and proper application, it can hold up for about 7 to 8 years under normal urban driving conditions. The filler repair on my car has stayed intact for five years now without any major cracks. However, in harsher environments—like constant exposure to sun and rain or frequent rough road driving—the filler tends to fatigue and age faster, requiring touch-ups every three to four years. My advice is to prioritize workmanship when buying or repairing a car. Don’t cut corners by going to shady shops, as low-quality filler may crack and peel within a year or two, forcing you to spend more on redoing it. Also, inspect the original paintwork carefully to prevent rust issues later—it’s a safer and more reliable approach.
The durability of body filler depends on the material and external factors. High-quality polyester fillers can last 5 to 10 years under standard conditions, but environments with high temperatures, humidity, or frequent temperature fluctuations will shorten their lifespan. My car's filler developed small cracks after just three years because I live by the southern coast where salt spray accelerates aging. In cold northern regions, freeze-thaw cycles are more likely to cause cracking. Application quality is also crucial—properly applied, thin, and fully cured coatings last longer. When repairing your car, choose reputable brands and check reviews to ensure long-term reliability rather than just going for the cheapest option.
