Serial Number

Project

Index

Test Method

1.1

State in Container

Gray viscous liquid, easy to stir, no obvious sediment.

Visual Inspection

1.2

Non-volatile content,

%(105±2)℃/2h/approximately 2g

≥75

GB/T1725-2007

1.3

Storage stability (5-30℃) for 1 year

No obvious changes.

GB6753.3-1986

Serial Number

Project

Index

2.1

Film baking conditions

70-80℃×30min or air-dry

2.2

Matching curing agent

Epoxy curing agent

2.3

Paint mixing ratio

Base paint: curing agent = 10:1

2.4

Thinner

Special thinner

2.5

Dilution rate, 20~30s (涂-4杯)

Thinner addition amount is 10%~30%

2.6

Leveling time, min

>10

Serial Number

Project

Index

Test Method

3.1

Film color and appearance

Flat and smooth.

Visual Inspection

3.2

Flexibility, mm

<=1

GB/T1731-1993

3.3

Scratch test, grade

<=1

GB9286-1998

3.4

Pencil hardness (scratched)

≥HB

GB6739-2006

3.5

Impact resistance, cm

≥40

GB/T1732-1993

3.6

Water resistance

(Immersion in distilled water at 40±2℃ for 240h)

No bubbling, slight discoloration and loss of luster allowed, adhesion level grade 1.

GB/T1733-1993 Method A

3.7

Acid resistance

(Immersion in a solution of 0.1N sulfuric acid for 24h)

No bubbling, no wrinkling, slight discoloration and loss of luster allowed, adhesion level grade 1.

GB/T9274-1988 Method A

3.8

Alkali resistance

(Immersion in a solution of NaOH for 24h)

No bubbling, no wrinkling, slight discoloration and loss of luster allowed, adhesion level grade 1.

GB/T9274-1988 Method A