Return Paint Technology
Parameter interpretation 10 min

How do you read performance parameters: from detection to project selection

Explains the relevance of solids content, viscosity, pot life, adhesion, grinding, weather resistance and chemical resistance in the selection.

How do you read performance parameters: from detection to project selection

Construction parameters

(b) Adhesiveness of viscosity; Solids content relates to theoretical formation; Pot life and touch-dry time determine how people, tools and construction areas are organized. The comparison of parameters must be based on the same temperature and test methods.

Mechanicality and attachment

It should be judged in relation to the type of base material, surface treatment and forms of destruction. The balance between hardness, stretching, stretching and grinding needs to be balanced, not the higher the value, the better for all scenarios.

Weather and chemical resistance

(a) weather resistance evaluation needs to focus on light sources, cycling, length, colour differentials, light loss and powdering levels; The chemical tolerance evaluation needs to identify the medium, concentration, temperature, mode of exposure and time.

The procurement or design phase should give priority to obtaining a test basis close to the actual application rather than comparing the single number on the page.

Form project data sheets

The base materials, construction environment, target film thickness, recoat window, maintenance conditions and acceptance indicators are organized in the same project data sheet to facilitate the use of uniform calibres for procurement, construction and acceptance.

Establishing a comparable data base

Read the performance parameters with the test method and then the value. viscosity is associated with temperature, rotor and rotation speed; Athesion is related to base materials, surface treatment, adhesives and extraction speed; Hardness, stretching and grinding are all affected by sample thickness and maintenance time. If the report gives results without conditions, it cannot be used for rigorous horizontal comparisons. The procurement technical form should list the test criteria, sample preparation, conservation environment and permissible ranges and confirm whether the data are derived from single fractions, mixtures or complete coating systems.

Parameters are selected in reverse from the construction equipment and on-site rhythm. Low viscosity facilitates penetration and development, but vertically it may be easier to hang; (a) Long pot life, which facilitates extensive construction, may prolong early opening; High entropy contributes to membrane formation, but is not a substitute for reasonable monolithic thickness control. Temperature changes will affect the mixture viscosity, reaction speed and deflation at the same time, so the typical values in the technical information should not be used as a guarantee of persistence in any environment. It would be preferable to make templates within target temperature prior to formal use.

From individual indicators to system balance

Hardness, tenacity, tenacity, strength at break requires concerted judgement. High hardness is conducive to injury resistance, but does not necessarily fit the grass roots of continuous migration; High stretch can help withstand crack changes, but reloading requires sufficient modelling and grinding. In addition to numerical values, the damage is observed at the substrate, at the interface or inside the coating. (a) If the concrete body is broken, it is indicated that the test results are limited by substrate strength; If the layers are properly separated, focus on recoat window, contamination and material compatibility.

The patient data should also observe colour differentials, loss of light, powdering, cracking and adhesion to maintain, rather than simply looking at the description “yearning response”. Chemical resistance is defined in terms of medium, concentration, temperature, leaching or dripping and evaluation time. Short-term, no significant change cannot directly represent long-term impregnation safety. The grinding results also depend on the grinding wheel, the load and the number of cycles. The project should be selected in such a way as to put the most critical failure pattern ahead of it and to accept the reasonable balance of the other secondary indicators, rather than seeking the largest numbers.

Forming a chain of project acceptance data

It is recommended that laboratory parameters be converted into on-site implementable indicators: post-mixed appearance, pot life, unit area usage, wet and dry membrane thickness, repainting time, open time, with sampling and defect determination. Each indicator identifies the instrument, frequency, location and responsibility. The construction records retain batches, quantities, environments and anomalies, allowing final detection results to be traced back to specific areas. It is difficult to explain local differences because only “materials qualify” do not have process data.

Vendor information, third-party reports, field templates and completion tests each address different issues. The information is used for initial screening, third-party reporting for performance under certification standards, field templates to confirm suitability and completed testing to verify actual delivery. The four cannot replace each other. For critical works, witness sampling, sampling and review mechanisms could be agreed in advance and permitted deviations could be written into technical agreements. This would avoid decision-making on the basis of propaganda parameters alone and would reduce post-construction disputes over the acceptance calibration.

Project landing and risk review

Prior to formal entry, the project leader shall organize a review of the design, materials, construction and user's common completion conditions and convert the drawing requirements into an on-site list of enforceable areas. The list contains, at a minimum, the type and state of the base materials, the target level and film thickness, the location of nodes, batches of materials, single batches, construction tools, division of labour, environmental control, repainting time and conditions of openness. Synchronization of cross-operations, temporary power, ventilation, fire protection and product protection to avoid interference with welding, cutting, dusting or installation of equipment. Following the completion of the first area of operation, a team self-check and technical review was conducted to compare actual usage, solidity and sample results and to confirm that there were no systemic deviations that could be carried out successively.

Quality management should have suspended inspection nodes instead of waiting for full coverage of the latter acceptance. The photographs and data are checked and stored before the substrate processes are completed, the Primer closures are closed, the defects are fixed, the key nodes are enhanced and the topcoat is delivered. In the event of an abnormal state of material, transboundary environment, batch changes or large area defects, the area shall be immediately isolated, samples and records maintained and the disposal method determined by the technicians. Any return to work will be accompanied by a breakdown interface, scope of processing, application of materials and results. The transformation of laboratory performance from stable to long-term use at the engineering site is achieved through piloting, process testimony, data marks and closed loop re-examination.

Selection guide

The test criteria, duration, scarring, treatment of base materials, primer, membrane thickness and determination conditions should be checked against the overall system in the determination of the paints.

How to compare salt-spray test reports

Salt-spray test results for polyaspartic anticorrosion coatings are comparable only when the standard, specimen preparation, scribing method, duration and assessment criteria match. For procurement or design, also confirm that the substrate, surface preparation, primer, topcoat and total film thickness in the report correspond to the proposed system.

Actual programmeCorrosion ProtectionContinue the reconciliation.