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How do you estimate the amount of adhesive needed when bonding pipes and fittings?

2018-07-07

When bonding pipes and fittings, the adhesive is typically applied at a rate of 200 g/㎡. However, account for an estimated 10% wastage. To calculate the required adhesive area, first determine the insertion depth and pipe diameter, then compute the total bonding surface. According to relevant regulations, the insertion depth of the fitting must be at least half the fitting’s diameter plus 6 mm. For example, for a fitting with a 200-mm diameter, the minimum insertion depth would be ≥ (200 ÷ 2) + 6 mm = 106 mm, or 0.106 m.

Adhesive application rate: 200 g/㎡ × 2 (surfaces) × Φ × 3.14 × insertion depth × 1.1 (wastage)

≈200 × 2 × 3.14 × 0.2 × 0.106 × 1.1

≈30g

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