What is the reason for the difference in painting estimates between companies? The difference in the number of pre-treatment processes.
The estimates differ by double on the same drawing. The cause of the difference is not the paint, but the number of pre-treatment processes. Here’s an explanation of the perspective for comparison.
Even though we submitted the same drawings, the estimates differ by nearly double between companies. It's not due to the paint difference; it's due to the difference in the number of pre-treatment processes. ────────────── ■Cause of Occurrence The cost of metal baked painting is determined more by the pre-treatment than by the painting itself. There is a significant difference in effort between three processes that only involve degreasing and seven processes that include chemical treatment. ■Truth Low estimates may omit chemical treatment, relying only on degreasing and rinsing. While the appearance may be the same immediately after delivery, differences in rust and peeling will appear outdoors after six months. If there is no pre-treatment specification in the drawings, each company will estimate using the cheapest process. ■Improvement Measures Clearly specify the number of pre-treatment processes and the type of chemical treatment when requesting estimates. Including the required film thickness and salt spray test duration will align the conditions. Please utilize comparison materials on pre-treatment processes and quality differences.
Inquire About This Product
Related Videos
basic information
Pre-treatment process: degreasing, water washing, acid washing, surface adjustment, zinc phosphate coating, water washing, drying / Coating thickness: 20-40 microns / Testing standards: salt spray, adhesion, pencil hardness / Applicable materials: iron, stainless steel, aluminum
Price range
Delivery Time
Applications/Examples of results
Preparation of specifications for the purchasing department, selection of partner companies, and outsourcing painting. I have a track record of supporting the establishment of estimation conditions that clearly outline the pretreatment process and required quality, enabling a standardized comparison of conditions.
catalog（1）
Download All Catalogs
Company information
We are not just a "subcontracted painting factory." Established in 1958, our company has a foundation of painting technology and also specializes in chemical treatment, stripping, and cleaning, functioning as the "external surface treatment department" in your organizational chart. Based on our philosophy of "preparation is eight-tenths of the work," we emphasize participation from the "upstream process" before the drawings are finalized. We conduct test painting on a wide range of metals and difficult materials, and we produce the entire process from assembly, packaging, to delivery, thereby reducing your management workload. Additionally, by being able to perform zinc phosphate treatment in-house, we achieve stable painting quality. Furthermore, our micro-heating stripping technology, which does not use chemicals, maintains the electrical state of the "jigs (hangers)" that influence painting quality. Our approach of "pre-treatment determines painting quality" ensures the stability of the paint film during mass production. Rather than simply "applying specified standards," we work backwards to achieve optimal painting specifications and prevent scratches during transportation, sparing no effort in thorough discussions from the outset. This diligent preparation is the shortest path to preventing rework and minimizing total costs. From the development stage, please utilize the expertise of our specialists as part of your production line.
