Guaranteed Quality Parameters – Handmade Production GLASFABRIK KVĚTNÁ s.r.o, Květná 1794

Specifications

Permissible deviations in quality

Dimensions and differences

Basic dimensions according to the approved drawing:
Products with a height / diameter of up to 150 mm - within the limit of +/- 2 mm

Products with a height / diameter above 150 mm - within the limit of +/- 3 mm
The difference in the thickness (strength) of the bottom: +/- 1 mm for products with a diameter of up to 100 mm, +/- 2 mm with a diameter over 100 mm, the diameter of the style +/- 1 mm, the thickness of the pumpkin +/- 1 mm
The difference in the thickness of the glass wall on one product (on the upper edge) +/- 1.5 mm
Acceptable ellipticity (ovality) +/- 2mm

Product shape

According to approved drawings or reference samples

The upper edge is 20mm wide

Body/surface of the product

Bottom/lower part

Enamel quality

Bubbles / blisters

Small products up to 150mm

1 small bubble (up to 1mm in size)

is acceptable

1 small bubble (up to 1mm)

1 medium bubble (up to 2mm)

acceptable (not in cluster)

1 small bubble (up to 1mm)

1 medium bubble (up to 2mm)

acceptable (not in cluster)

Large products over 150mm

1 small bubble (up to 1mm in size)

is acceptable

2 small bubble (up to 2mm)

1 medium bubble (up to 3mm)

acceptable (not in cluster)

2 small bubble (up to 2mm)

1 medium bubble (up to 2mm)

acceptable (not in cluster)

Open blister / or bubble on the surface

Unacceptable

Unacceptable

Unacceptable

Screws

One faint streak / vinta is acceptable (visible at a distance of 1 m). The strip should not delimit the product or disturb its appearance. The standard minimum glass thickness of the products is 1 mm. If the customer requests products with a glass thickness below 1 mm, the glass factory can produce them, but without guarantee.
This means that it is not responsible for possible breakage during transport, handling and also during use by the end customer. In case of possible injury when the product is broken, compensation cannot be claimed from GLASFABRIK KVĚTNÁ s.r.o.

It should also be noted that the correct blowing and shaping technique cannot be followed when the glass is less than 1 mm thick. Because the enamel is not properly processed, the structure of the glass can be visible and thus visible imperfections such as vins, glass translations or fine mead (hairline). We would like to draw attention to this fact before starting the production of such an order.

White stone / unmelted

Unacceptable

Unacceptable

Unacceptable

Iron

Unacceptable

Only a small piece (max. size 1mm)

Only a small piece (max. size 1mm)

Colored enamel

Color specifications according to the GLASFABRIK KVĚTNÁ s.r.o. sample book.
With regard to the production technique, slight differences in color shades are allowed, because we depend on the supplied raw materials,
also subtle color shades between different products are acceptable.

Shaping

Traces from molds and tools

Fine traces (rims) from molds / tools are accepted, but only partially (max. 1/3 of the diameter of the product)

Fine traces (rims) from molds / tools are accepted, but only partially (max. 1/3 of the diameter of the product)

More visible marks from molds / tools can be from the bottom of the product

Wavy surface

Unacceptable

Only slightly, more like optics, is allowed for larger products (from 150mm)

It is unacceptable, allowed for larger products

Stable base / bottom

N.A. N.A.

It should be straight, only slightly rocking is allowed (max. 0.3 mm), if it is more, the bottom is ground and finely polished

Cracked, broken product

It is not allowed

It is not allowed

It is not allowed

Processing / decoration

Top edge

Straight edge, rounded edge, properly ground and finely polished, sharp or chipped edges are not acceptable

N.A. N.A.

Handling scrapers

They are generally not accepted, only very fine ones, with a maximum length of 4mm may be allowed (max. 2 pieces per product)

Sticky shards on the glass

Unacceptable

Unacceptable

Unacceptable

Dirt / burnt dirt

Unacceptable

Unacceptable

Unacceptable

Sandblasted logo

N.A.

Correct shape and location, visible and legible, no sand residue

Correct shape and placement, visible and readable (top or bottom)

Gold / platinum painting

Rims on the edge or in the body may be slightly uneven, thickness within the limit of +/- 0.5mm,
ornaments or other motifs can only have slightly uneven edges so as not to disturb the appearance of the product.

A few holes in the gold (up to 0.1 mm) in the painted part are permissible.

The rims on the gourd can be slightly uneven in thickness within the limit of +/- 0.5 mm.
A few holes in the gold (up to 0.1 mm) in the painted part are permissible

Panto, Diaryt, engraving

Ornaments or other motifs are made according to approved designs, some flaws in the decor are possible:

Missing places (up to 1mm in length), 2-3 pieces per product
Subtle differences in the strength and depth of the groove, so that they do not disturb the appearance of the product.

Splashed paint

Color shades are possible according to the Pantone swatch.
The colored surface should be smooth, without rough spots, a fine grit or clump of paint is accepted on difficult product shapes.
Subtle differences in color shades or a hammered (orange) surface is acceptable as long as it does not disturb the appearance.

Straining, cooling

All products are properly supercooled and stress-free, checked with a polaroscope or diamond cutter.

Specifications

Permissible deviations in quality are divided into three different sections of the product: Top edge in width 20mm, Body / surface of the product, Bottom / lower part and this is specified in the relevant sections.

Dimensions and differences

Basic dimensions according to the approved drawing:
Products with a height / diameter of up to 150 mm - within the limit of +/- 2 mm

Products with a height / diameter above 150 mm - within the limit of +/- 3 mm
The difference in the thickness (strength) of the bottom: +/- 1 mm for products with a diameter of up to 100 mm, +/- 2 mm with a diameter over 100 mm, the diameter of the style +/- 1 mm, the thickness of the pumpkin +/- 1 mm
The difference in the thickness of the glass wall on one product (on the upper edge) +/- 1.5 mm
Acceptable ellipticity (ovality) +/- 2mm

Product shape

According to approved drawings or reference samples

Enamel quality

Unacceptable

Bubbles / blisters

Unacceptable

Screws

One faint streak / vinta is acceptable (visible at a distance of 1 m). The strip should not delimit the product or disturb its appearance. The standard minimum glass thickness of the products is 1 mm. If the customer requests products with a glass thickness below 1 mm, the glass factory can produce them, but without guarantee.
This means that it is not responsible for possible breakage during transport, handling and also during use by the end customer. In case of possible injury when the product is broken, compensation cannot be claimed from GLASFABRIK KVĚTNÁ s.r.o.

It should also be noted that the correct blowing and shaping technique cannot be followed when the glass is less than 1 mm thick. Because the enamel is not properly processed, the structure of the glass can be visible and thus visible imperfections such as vins, glass translations or fine mead (hairline). We would like to draw attention to this fact before starting the production of such an order.

White stone / unmelted

Unacceptable

Iron

Body / surface of the product, Bottom / lower part

Only a small piece (max. size 1mm)

Colored enamel

Color specifications according to the GLASFABRIK KVĚTNÁ s.r.o. sample book.
With regard to the production technique, slight differences in color shades are allowed, because we depend on the supplied raw materials,
also subtle color shades between different products are acceptable.

Shaping

Unacceptable

Traces from molds and tools

Upper edge in width 20mm, Body / surface of the product

Fine traces (rims) from molds / tools are accepted, but only partially (max. 1/3 of the diameter of the product)

Bottom / lower part

More visible marks from molds / tools can be from the bottom of the product

Wavy surface

The upper edge is 20mm wide

Unacceptable

Body / surface of the product

Only slightly, more like optics

Bottom / lower part

Unacceptable, it is allowed for larger products

Bottom

Bottom / lower part

It should be straight, only slightly rocking is allowed (max. 0.3 mm), if it is more, the bottom is ground and finely polished

Cracked, broken product

It is not allowed

Processing / decoration

Unacceptable

Top edge

The upper edge is 20mm wide

Straight edge, rounded edge, properly ground and finely polished, sharp or chipped edges are not acceptable

Handling scrapers

They are generally not accepted, only very fine ones, with a maximum length of 4mm may be allowed (max. 2 pieces per product)

Sticky shards on the glass

Unacceptable

Dirt / burnt dirt

Unacceptable

Sandblasted logo

Body / surface of the product, Bottom / lower part

Correct shape and location, visible and legible, no sand residue

Gold / platinum painting

Rims on the edge or in the body may be slightly uneven, thickness within the limit of +/- 0.5mm,
ornaments or other motifs can only have slightly uneven edges so as not to disturb the appearance of the product.

A few holes in the gold (up to 0.1 mm) in the painted part are permissible.

Panto, Diaryt, engraving

Ornaments or other motifs are made according to approved designs, some flaws in the decor are possible:

Missing places (up to 1mm in length), 2-3 pieces per product
Subtle differences in the strength and depth of the groove, so that they do not disturb the appearance of the product.

Splashed paint

Color shades are possible according to the Pantone swatch.
The colored surface should be smooth, without rough spots, a fine grit or clump of paint is accepted on difficult product shapes.
Subtle differences in color shades or a hammered (orange) surface is acceptable as long as it does not disturb the appearance.

Straining, cooling

All products are properly supercooled and stress-free, checked with a polaroscope or diamond cutter.

NOTES:

Decorated products (with gold, platinum, or spray-painted) must not be washed in a dishwasher. All decorated products must be stored in dry conditions (especially gold, as it can corrode if left in moisture). Prices are calculated based on quality standards, and all complaints under these standards are considered unjustified.

Other quality options are available according to customer requests, with adjusted pricing.

Prepared by:

GLASFABRIK KVĚTNÁ s.r.o.

nám. Em. Zahna 1151
Květná

687 66 Strání

VAT: CZ29283477