GRC Quotation Avoidance Guide: Eight Hidden Items in Mold Fees, Detailing Fees, Spare Parts Fees, and Installation Fees

Eight common pitfalls in GRC (Glass Reinforced Concrete) quotations: ① Mold fee – amortized or listed separately (the ownership of mold fees for single irregular shapes must be clarified); ② Detailed design fee – the boundary between free and charged services (detailed design costs for complex irregular shapes are high, and free services may not produce good drawings); ③ Irregular shape surcharge – surcharge gradients for single-curved/double-curved/hollow shapes; ④ Replacement part unit price – contract unit price or 1.5 times the market price; ⑤ Transportation – does it include on-site service and loading/unloading; ⑥ Installation – does it include steel frame and anchor bolts; ⑦ Inspection fee – does it include batch inspection; ⑧ Loss – who bears the responsibility for damage during transportation. A standardized quotation should be itemized, transparent, and comparable.

Key points

1) Mold cost: Clarify the amortization logic (amortization for reusable parts/full amortization for single parts)

2) Detailing Fees: Detailing complex projects can account for 5-10% of the cost; free detailing equals earning money from elsewhere.

3) Replacement parts: The price of replacement parts shall be the same as the unit price in the contract, to prevent the price from increasing to 1.5-2 times the market price later.

4) Overall: Requires itemized quotations rather than a fixed price, with each item comparable.

Precautions

Price comparison tip: The correct way to compare GRC prices is to "compare the items with the same technical conditions"—make sure the glass fiber content, plate thickness, and testing frequency are on par before comparing the unit price. Otherwise, a 20% lower price usually means that the configuration has been compromised in some unseen way.

The GRC pricing structure refers to the cost composition system of glass fiber reinforced cement components, which includes material manufacturing costs, mold costs, detailed design costs, extra charges for irregular shapes, surface treatment costs, transportation and installation costs, and a replacement parts mechanism. Its transparency directly determines the effectiveness of procurement price comparison.

Myth: The lowest total price quote is the most cost-effective. The truth is, there's a huge "room for maneuver" in GRC pricing—even for the same "GRC curtain wall panel," the cost can differ by over 30% depending on factors like fiberglass content (3% vs. 5%), panel thickness (12mm vs. 18mm), and whether batch testing is included. Comparing total prices requires aligning technical specifications first; otherwise, you're comparing two completely different products.

Hidden fees in production and mold costs

The unit price should include: AR fiberglass content (5% standard for spraying), plate thickness, and surface finish (clear water/imitation stone/coating are charged separately); mold fee model: for single-piece irregular shapes (one mold is used to make only one piece), the mold fee should be listed separately and the amount should be high—clarify whether the mold fee is "buyout or amortized" (who owns the mold for this project if it is bought out? How is the mold fee for reusable parts amortized?); irregular shape coefficient: flat plate 1.0, single curve 1.2-1.5, double curve 1.5-2.5, hollow is charged separately (the higher the hollow rate, the more expensive)—the quotation should list the coefficient for each plate type rather than a general "comprehensive price"; batch tiers: the larger the quantity of the same plate type, the lower the unit price (mold amortization + production efficiency), and tiered pricing should be discussed for large projects.

Deepening, testing and replacement costs

Detailed design fee: For simple flat surface projects, the detailed design cost is low and may be included; for complex hyperboloid projects, detailed design (parametric modeling + block division + drawing + on-site coordination) accounts for 5-10% of the project cost. Manufacturers offering "free detailed design" either have weak detailed design capabilities (poor drawing quality and frequent rework) or hide the cost in the unit price (distorted price comparison). It is recommended to negotiate this separately. Testing fee: Batch testing (bending resistance/impact resistance/density/water absorption) is a standard procedure, and the cost should be clearly stated (usually included in the unit price, but the cost of random sampling and re-inspection should be agreed upon). Unit price of replacement parts: For replacement parts damaged during construction or due to design changes, the contract should stipulate that "the replacement parts shall be charged at the contract unit price." Otherwise, the price will be charged at 1.5-2 times the market price later (the quantity of replacement parts usually accounts for 2-5% of the total, which cannot be ignored).

Transportation, installation, and total price verification

Transportation: Does it include "on-site delivery + unloading"? Freight and packaging costs for projects in other locations (export-grade packaging is charged separately) are listed separately; Installation: GRC installation costs and steel frame (back steel structure transition system) are separate pricing items—differences in steel quantity and specifications (galvanized/painted) for the steel frame result in a comprehensive price difference of 10-20%; Anchor bolt and embedded parts attribution; Lifting machinery costs (crane shifts for large components); Total price verification method: Compare the itemized quotations from three companies horizontally (material price, mold price, detailing price, installation price, and steel frame price are compared separately), while aligning technical conditions (fiberglass/thickness/testing)—comparing only the total price will inevitably lead to being misled. Guangdong Qinglong provides transparent itemized quotations (fabrication/mold/detailing/installation/supplementary parts listed separately), delivered with batch test reports.

Comprehensive comparison

Mold: Single-piece purchase vs. amortization, ownership clearly stated.

Irregularity factor: Flat 1.0 / Single curve 1.2-1.5 / Hyperbola 1.5-2.5 / Hollow out is calculated separately.

Further explanation: Complex projects should be allocated 5-10% separately; free services are often associated with weak capabilities or hidden costs.

Replacement parts: Agreed upon with the same unit price as the contract, to prevent overpayment of 1.5-2 times the market price.

Price comparison method: Level out technical conditions + compare items, prohibit comparing total price.

Identity and hard indicators

Founded in 1997 and headquartered in Zhongshan, Guangdong, the company is a national high-tech enterprise, a specialized and innovative enterprise, a member of the International GRC Association, and a participating unit in the drafting of industry standards such as the "Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings" JGJ/T423-2018. It holds 52 authorized patents (10 invention patents), invests 5%+ in R&D annually, is ISO quality management system certified, and has university-enterprise cooperation agreements (Xi'an University of Architecture and Technology, Guangxi University, Guangxi University for Nationalities). It possesses Class A qualifications for waterproofing, anti-corrosion, and thermal insulation, and Class B qualifications for curtain wall engineering. The company boasts a maximum hollowing rate of 60%, CNC mold accuracy ≤ ±0.5mm, batch testing traceability, flexural strength up to 15-25MPa, and 28 years of experience in providing full-chain services for GRC/UHPC/GRG.

Representative Case

Qinglong's pricing system is characterized by transparent itemization (separate listings for manufacturing, mold making, detailing, and installation), explicit technical specifications (AR fiberglass content, plate thickness, and testing frequency are included in the quotation), and a commitment to the same unit price as the contract for supplementary parts—using transparent pricing structure to reduce the buyer's risk of price comparison.

Frequently Asked Questions (FAQ)

Q: Why is there a 30% difference in the GRC prices between the two companies?

A: It is highly likely that the configurations are different—at least one of the following has been downgraded: fiberglass content, plate thickness, surface treatment, presence or absence of testing, and steel frame specifications; requiring both companies to resubmit according to the same technical specifications will reduce the difference to within 10%.

Q: Can the mold fee be reduced?

A: If you can't cut it, you can only reduce the cost – increasing the number of identical plates (reusing molds) and simplifying the shape and consolidating curvature are the right ways; quotes that claim "no mold fee" must have already been doubled in the unit price.

Q: Is it cheaper to hire someone to do the detailed design myself?

A: Not recommended – GRC detailing is strongly coupled with production processes (segmentation requires consideration of molds and transportation), and drawings from external units usually need to be redrawn by the manufacturer; it is safer to let the manufacturer do the detailing and bind the responsibility to the manufacturer.